diff --git a/your-code/pandas_1.ipynb b/your-code/pandas_1.ipynb
index 4f428ac..e625c22 100644
--- a/your-code/pandas_1.ipynb
+++ b/your-code/pandas_1.ipynb
@@ -18,7 +18,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -35,7 +35,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -44,10 +44,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "0     5.7\n",
+      "1    75.2\n",
+      "2    74.4\n",
+      "3    84.0\n",
+      "4    66.5\n",
+      "5    66.3\n",
+      "6    55.8\n",
+      "7    75.7\n",
+      "8    29.1\n",
+      "9    43.7\n",
+      "dtype: float64\n"
+     ]
+    }
+   ],
+   "source": [
+    "series_lst = pd.Series(lst)\n",
+    "print(series_lst)"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -60,10 +81,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 10,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "74.4"
+      ]
+     },
+     "execution_count": 10,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "series_lst.values[2]"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -74,7 +108,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -92,10 +126,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 14,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "      0     1     2     3     4\n",
+      "0  53.1  95.0  67.5  35.0  78.4\n",
+      "1  61.3  40.8  30.8  37.8  87.6\n",
+      "2  20.6  73.2  44.2  14.6  91.8\n",
+      "3  57.4   0.1  96.1   4.2  69.5\n",
+      "4  83.6  20.5  85.4  22.8  35.9\n",
+      "5  49.0  69.0   0.1  31.8  89.1\n",
+      "6  23.3  40.7  95.0  83.8  26.9\n",
+      "7  27.6  26.4  53.8  88.8  68.5\n",
+      "8  96.6  96.4  53.4  72.4  50.1\n",
+      "9  73.7  39.0  43.2  81.6  34.7\n"
+     ]
+    }
+   ],
+   "source": [
+    "df_b = pd.DataFrame(b)\n",
+    "print(df_b)"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -106,7 +161,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -124,7 +179,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -133,10 +188,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 40,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "   Score_1  Score_2  Score_3  Score_4  Score_5\n",
+      "0     53.1     95.0     67.5     35.0     78.4\n",
+      "1     61.3     40.8     30.8     37.8     87.6\n",
+      "2     20.6     73.2     44.2     14.6     91.8\n",
+      "3     57.4      0.1     96.1      4.2     69.5\n",
+      "4     83.6     20.5     85.4     22.8     35.9\n",
+      "5     49.0     69.0      0.1     31.8     89.1\n",
+      "6     23.3     40.7     95.0     83.8     26.9\n",
+      "7     27.6     26.4     53.8     88.8     68.5\n",
+      "8     96.6     96.4     53.4     72.4     50.1\n",
+      "9     73.7     39.0     43.2     81.6     34.7\n"
+     ]
+    }
+   ],
+   "source": [
+    "df_b1 = df_b.rename(columns = {0: 'Score_1', 1: 'Score_2', 2: 'Score_3', 3: 'Score_4', 4: 'Score_5'})\n",
+    "print(df_b1)"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -147,10 +223,122 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 29,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Score_1</th>\n",
+       "      <th>Score_3</th>\n",
+       "      <th>Score_5</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>53.1</td>\n",
+       "      <td>67.5</td>\n",
+       "      <td>78.4</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>61.3</td>\n",
+       "      <td>30.8</td>\n",
+       "      <td>87.6</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>20.6</td>\n",
+       "      <td>44.2</td>\n",
+       "      <td>91.8</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>57.4</td>\n",
+       "      <td>96.1</td>\n",
+       "      <td>69.5</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>83.6</td>\n",
+       "      <td>85.4</td>\n",
+       "      <td>35.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>49.0</td>\n",
+       "      <td>0.1</td>\n",
+       "      <td>89.1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>6</th>\n",
+       "      <td>23.3</td>\n",
+       "      <td>95.0</td>\n",
+       "      <td>26.9</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>7</th>\n",
+       "      <td>27.6</td>\n",
+       "      <td>53.8</td>\n",
+       "      <td>68.5</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>8</th>\n",
+       "      <td>96.6</td>\n",
+       "      <td>53.4</td>\n",
+       "      <td>50.1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>9</th>\n",
+       "      <td>73.7</td>\n",
+       "      <td>43.2</td>\n",
+       "      <td>34.7</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   Score_1  Score_3  Score_5\n",
+       "0     53.1     67.5     78.4\n",
+       "1     61.3     30.8     87.6\n",
+       "2     20.6     44.2     91.8\n",
+       "3     57.4     96.1     69.5\n",
+       "4     83.6     85.4     35.9\n",
+       "5     49.0      0.1     89.1\n",
+       "6     23.3     95.0     26.9\n",
+       "7     27.6     53.8     68.5\n",
+       "8     96.6     53.4     50.1\n",
+       "9     73.7     43.2     34.7"
+      ]
+     },
+     "execution_count": 29,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df_b1[['Score_1', 'Score_3', 'Score_5']]"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -161,10 +349,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 37,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "2    56.95\n",
+       "dtype: float64"
+      ]
+     },
+     "execution_count": 37,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df_b_score3 = df_b[[2]]\n",
+    "\n",
+    "df_b_score3.mean()"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -175,10 +379,25 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 39,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "3    88.8\n",
+       "dtype: float64"
+      ]
+     },
+     "execution_count": 39,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df_b_score4 = df_b[[3]]\n",
+    "df_b_score4.max()"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -189,10 +408,46 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 42,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "1    40.75\n",
+       "dtype: float64"
+      ]
+     },
+     "execution_count": 42,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df_b_score2 = df_b[[1]]\n",
+    "df_b_score2.median()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 44,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "1    40.75\n",
+       "dtype: float64"
+      ]
+     },
+     "execution_count": 44,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df_b[[1]].median()"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -203,7 +458,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 45,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -224,10 +479,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 47,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "                          Description  Quantity  UnitPrice  Revenue\n",
+      "0              LUNCH BAG APPLE DESIGN         1       1.65     1.65\n",
+      "1  SET OF 60 VINTAGE LEAF CAKE CASES         24       0.55    13.20\n",
+      "2         RIBBON REEL STRIPES DESIGN          1       1.65     1.65\n",
+      "3   WORLD WAR 2 GLIDERS ASSTD DESIGNS      2880       0.18   518.40\n",
+      "4    PLAYING CARDS JUBILEE UNION JACK         2       1.25     2.50\n",
+      "5                      POPCORN HOLDER         7       0.85     5.95\n",
+      "6      BOX OF VINTAGE ALPHABET BLOCKS         1      11.95    11.95\n",
+      "7                       PARTY BUNTING         4       4.95    19.80\n",
+      "8            JAZZ HEARTS ADDRESS BOOK        10       0.19     1.90\n",
+      "9       SET OF 4 SANTA PLACE SETTINGS        48       1.25    60.00\n"
+     ]
+    }
+   ],
+   "source": [
+    "df_orders = pd.DataFrame(orders)\n",
+    "print(df_orders)"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -238,10 +514,27 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 54,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Quantity    2978\n",
+      "dtype: int64\n",
+      "Revenue    637.0\n",
+      "dtype: float64\n"
+     ]
+    }
+   ],
+   "source": [
+    "total_quantity = df_orders[list({'Quantity'})].sum()\n",
+    "print(total_quantity)\n",
+    "\n",
+    "total_revenue = df_orders[list({'Revenue'})].sum()\n",
+    "print(total_revenue)"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -252,10 +545,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 68,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "UnitPrice    11.95\n",
+      "dtype: float64\n",
+      "UnitPrice    0.18\n",
+      "dtype: float64\n",
+      "UnitPrice    11.77\n",
+      "dtype: float64\n"
+     ]
+    }
+   ],
+   "source": [
+    "highest_price = df_orders[list({'UnitPrice'})].max()\n",
+    "print(highest_price)\n",
+    "\n",
+    "lowest_price = df_orders[list({'UnitPrice'})].min()\n",
+    "print(lowest_price)\n",
+    "\n",
+    "print(highest_price - lowest_price)"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -266,7 +580,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 70,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -285,10 +599,130 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 73,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>Serial No.</th>\n",
+       "      <th>GRE Score</th>\n",
+       "      <th>TOEFL Score</th>\n",
+       "      <th>University Rating</th>\n",
+       "      <th>SOP</th>\n",
+       "      <th>LOR</th>\n",
+       "      <th>CGPA</th>\n",
+       "      <th>Research</th>\n",
+       "      <th>Chance of Admit</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>1</td>\n",
+       "      <td>337</td>\n",
+       "      <td>118</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.65</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.92</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>316</td>\n",
+       "      <td>104</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>8.00</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.72</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>3</td>\n",
+       "      <td>322</td>\n",
+       "      <td>110</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>2.5</td>\n",
+       "      <td>8.67</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.80</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>4</td>\n",
+       "      <td>314</td>\n",
+       "      <td>103</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>8.21</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.65</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>5</td>\n",
+       "      <td>330</td>\n",
+       "      <td>115</td>\n",
+       "      <td>5</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>9.34</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.90</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   Serial No.  GRE Score  TOEFL Score  University Rating  SOP  LOR  CGPA  \\\n",
+       "0           1        337          118                  4  4.5  4.5  9.65   \n",
+       "1           2        316          104                  3  3.0  3.5  8.00   \n",
+       "2           3        322          110                  3  3.5  2.5  8.67   \n",
+       "3           4        314          103                  2  2.0  3.0  8.21   \n",
+       "4           5        330          115                  5  4.5  3.0  9.34   \n",
+       "\n",
+       "   Research  Chance of Admit  \n",
+       "0         1             0.92  \n",
+       "1         1             0.72  \n",
+       "2         1             0.80  \n",
+       "3         0             0.65  \n",
+       "4         1             0.90  "
+      ]
+     },
+     "execution_count": 73,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "admissions.head()"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -299,10 +733,32 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 77,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "Serial No.           0\n",
+       "GRE Score            0\n",
+       "TOEFL Score          0\n",
+       "University Rating    0\n",
+       "SOP                  0\n",
+       "LOR                  0\n",
+       "CGPA                 0\n",
+       "Research             0\n",
+       "Chance of Admit      0\n",
+       "dtype: int64"
+      ]
+     },
+     "execution_count": 77,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "admissions.isnull().sum()"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -313,10 +769,219 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 92,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>GRE Score</th>\n",
+       "      <th>TOEFL Score</th>\n",
+       "      <th>University Rating</th>\n",
+       "      <th>SOP</th>\n",
+       "      <th>LOR</th>\n",
+       "      <th>CGPA</th>\n",
+       "      <th>Research</th>\n",
+       "      <th>Chance of Admit</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Serial No.</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>337</td>\n",
+       "      <td>118</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.65</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.92</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>316</td>\n",
+       "      <td>104</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>8.00</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.72</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>322</td>\n",
+       "      <td>110</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>2.5</td>\n",
+       "      <td>8.67</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.80</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>314</td>\n",
+       "      <td>103</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>8.21</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.65</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>330</td>\n",
+       "      <td>115</td>\n",
+       "      <td>5</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>9.34</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.90</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
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+       "      <td>...</td>\n",
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+       "    <tr>\n",
+       "      <th>381</th>\n",
+       "      <td>324</td>\n",
+       "      <td>110</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>9.04</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.82</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>382</th>\n",
+       "      <td>325</td>\n",
+       "      <td>107</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>9.11</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.84</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>383</th>\n",
+       "      <td>330</td>\n",
+       "      <td>116</td>\n",
+       "      <td>4</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.45</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.91</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>384</th>\n",
+       "      <td>312</td>\n",
+       "      <td>103</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>8.78</td>\n",
+       "      <td>0</td>\n",
+       "      <td>0.67</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>385</th>\n",
+       "      <td>333</td>\n",
+       "      <td>117</td>\n",
+       "      <td>4</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>9.66</td>\n",
+       "      <td>1</td>\n",
+       "      <td>0.95</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>385 rows × 8 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "            GRE Score  TOEFL Score  University Rating  SOP  LOR  CGPA  \\\n",
+       "Serial No.                                                              \n",
+       "1                 337          118                  4  4.5  4.5  9.65   \n",
+       "2                 316          104                  3  3.0  3.5  8.00   \n",
+       "3                 322          110                  3  3.5  2.5  8.67   \n",
+       "4                 314          103                  2  2.0  3.0  8.21   \n",
+       "5                 330          115                  5  4.5  3.0  9.34   \n",
+       "...               ...          ...                ...  ...  ...   ...   \n",
+       "381               324          110                  3  3.5  3.5  9.04   \n",
+       "382               325          107                  3  3.0  3.5  9.11   \n",
+       "383               330          116                  4  5.0  4.5  9.45   \n",
+       "384               312          103                  3  3.5  4.0  8.78   \n",
+       "385               333          117                  4  5.0  4.0  9.66   \n",
+       "\n",
+       "            Research  Chance of Admit  \n",
+       "Serial No.                             \n",
+       "1                  1             0.92  \n",
+       "2                  1             0.72  \n",
+       "3                  1             0.80  \n",
+       "4                  0             0.65  \n",
+       "5                  1             0.90  \n",
+       "...              ...              ...  \n",
+       "381                1             0.82  \n",
+       "382                1             0.84  \n",
+       "383                1             0.91  \n",
+       "384                0             0.67  \n",
+       "385                1             0.95  \n",
+       "\n",
+       "[385 rows x 8 columns]"
+      ]
+     },
+     "execution_count": 92,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "admissions.set_index('Serial No.') #not running this because I accidentally overwrote admissions already so this no longer works but this is what I did! \n",
+    "admissions"
+   ]
   },
   {
    "cell_type": "code",
@@ -334,10 +999,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 97,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "True"
+      ]
+     },
+     "execution_count": 97,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "admissions[\"GRE_CGPA\"] = admissions[\"GRE Score\"].astype(str) + \"-\" + admissions[\"CGPA\"].astype(str)\n",
+    "admissions[\"GRE_CGPA\"].is_unique\n"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -348,10 +1027,234 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 114,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "\n",
+       "    .dataframe tbody tr th {\n",
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+       "\n",
+       "    .dataframe thead th {\n",
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+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>GRE Score</th>\n",
+       "      <th>TOEFL Score</th>\n",
+       "      <th>University Rating</th>\n",
+       "      <th>SOP</th>\n",
+       "      <th>LOR</th>\n",
+       "      <th>CGPA</th>\n",
+       "      <th>Research</th>\n",
+       "      <th>Chance of Admit</th>\n",
+       "      <th>GRE_CGPA</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Serial No.</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>337</td>\n",
+       "      <td>118</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.65</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.92</td>\n",
+       "      <td>337-9.65</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>330</td>\n",
+       "      <td>115</td>\n",
+       "      <td>5</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>9.34</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.90</td>\n",
+       "      <td>330-9.34</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>11</th>\n",
+       "      <td>328</td>\n",
+       "      <td>112</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.10</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.78</td>\n",
+       "      <td>328-9.1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>20</th>\n",
+       "      <td>328</td>\n",
+       "      <td>116</td>\n",
+       "      <td>5</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>9.50</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.94</td>\n",
+       "      <td>328-9.5</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>21</th>\n",
+       "      <td>334</td>\n",
+       "      <td>119</td>\n",
+       "      <td>5</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.70</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.95</td>\n",
+       "      <td>334-9.7</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>380</th>\n",
+       "      <td>329</td>\n",
+       "      <td>111</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>9.23</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.89</td>\n",
+       "      <td>329-9.23</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>381</th>\n",
+       "      <td>324</td>\n",
+       "      <td>110</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>9.04</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.82</td>\n",
+       "      <td>324-9.04</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>382</th>\n",
+       "      <td>325</td>\n",
+       "      <td>107</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>9.11</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.84</td>\n",
+       "      <td>325-9.11</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>383</th>\n",
+       "      <td>330</td>\n",
+       "      <td>116</td>\n",
+       "      <td>4</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.45</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.91</td>\n",
+       "      <td>330-9.45</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>385</th>\n",
+       "      <td>333</td>\n",
+       "      <td>117</td>\n",
+       "      <td>4</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>9.66</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.95</td>\n",
+       "      <td>333-9.66</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>110 rows × 9 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "            GRE Score  TOEFL Score  University Rating  SOP  LOR  CGPA  \\\n",
+       "Serial No.                                                              \n",
+       "1                 337          118                  4  4.5  4.5  9.65   \n",
+       "5                 330          115                  5  4.5  3.0  9.34   \n",
+       "11                328          112                  4  4.0  4.5  9.10   \n",
+       "20                328          116                  5  5.0  5.0  9.50   \n",
+       "21                334          119                  5  5.0  4.5  9.70   \n",
+       "...               ...          ...                ...  ...  ...   ...   \n",
+       "380               329          111                  4  4.5  4.0  9.23   \n",
+       "381               324          110                  3  3.5  3.5  9.04   \n",
+       "382               325          107                  3  3.0  3.5  9.11   \n",
+       "383               330          116                  4  5.0  4.5  9.45   \n",
+       "385               333          117                  4  5.0  4.0  9.66   \n",
+       "\n",
+       "            Research  Chance of Admit  GRE_CGPA  \n",
+       "Serial No.                                       \n",
+       "1               True             0.92  337-9.65  \n",
+       "5               True             0.90  330-9.34  \n",
+       "11              True             0.78   328-9.1  \n",
+       "20              True             0.94   328-9.5  \n",
+       "21              True             0.95   334-9.7  \n",
+       "...              ...              ...       ...  \n",
+       "380             True             0.89  329-9.23  \n",
+       "381             True             0.82  324-9.04  \n",
+       "382             True             0.84  325-9.11  \n",
+       "383             True             0.91  330-9.45  \n",
+       "385             True             0.95  333-9.66  \n",
+       "\n",
+       "[110 rows x 9 columns]"
+      ]
+     },
+     "execution_count": 114,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "condition_1 = (admissions[\"CGPA\"] > 9) & (admissions[\"Research\"] == 1)\n",
+    "admissions_filter1 = admissions[condition_1]\n",
+    "admissions_filter1\n",
+    "##not sure why this wasn't working when I tried to do it in 2 separate conditions"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -362,17 +1265,167 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 117,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>GRE Score</th>\n",
+       "      <th>TOEFL Score</th>\n",
+       "      <th>University Rating</th>\n",
+       "      <th>SOP</th>\n",
+       "      <th>LOR</th>\n",
+       "      <th>CGPA</th>\n",
+       "      <th>Research</th>\n",
+       "      <th>Chance of Admit</th>\n",
+       "      <th>GRE_CGPA</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Serial No.</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>29</th>\n",
+       "      <td>338</td>\n",
+       "      <td>118</td>\n",
+       "      <td>4</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.40</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.91</td>\n",
+       "      <td>338-9.4</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>63</th>\n",
+       "      <td>327</td>\n",
+       "      <td>114</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>9.02</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.61</td>\n",
+       "      <td>327-9.02</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>141</th>\n",
+       "      <td>326</td>\n",
+       "      <td>114</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>9.11</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.83</td>\n",
+       "      <td>326-9.11</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>218</th>\n",
+       "      <td>324</td>\n",
+       "      <td>111</td>\n",
+       "      <td>4</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>9.01</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.82</td>\n",
+       "      <td>324-9.01</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>382</th>\n",
+       "      <td>325</td>\n",
+       "      <td>107</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>9.11</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.84</td>\n",
+       "      <td>325-9.11</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "            GRE Score  TOEFL Score  University Rating  SOP  LOR  CGPA  \\\n",
+       "Serial No.                                                              \n",
+       "29                338          118                  4  3.0  4.5  9.40   \n",
+       "63                327          114                  3  3.0  3.0  9.02   \n",
+       "141               326          114                  3  3.0  3.0  9.11   \n",
+       "218               324          111                  4  3.0  3.0  9.01   \n",
+       "382               325          107                  3  3.0  3.5  9.11   \n",
+       "\n",
+       "            Research  Chance of Admit  GRE_CGPA  \n",
+       "Serial No.                                       \n",
+       "29              True             0.91   338-9.4  \n",
+       "63              True             0.61  327-9.02  \n",
+       "141             True             0.83  326-9.11  \n",
+       "218             True             0.82  324-9.01  \n",
+       "382             True             0.84  325-9.11  "
+      ]
+     },
+     "execution_count": 117,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "condition_2 = (admissions[\"CGPA\"] > 9) & (admissions[\"SOP\"] < 3.5)\n",
+    "admissions_filter2 = admissions[condition_2]\n",
+    "admissions_filter2"
+   ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 119,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "0.8019999999999999"
+      ]
+     },
+     "execution_count": 119,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "mean_chance = admissions_filter2[\"Chance of Admit\"].mean()\n",
+    "mean_chance"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -384,10 +1437,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 120,
    "metadata": {},
    "outputs": [],
-   "source": []
+   "source": [
+    "def toefl_condition(score):\n",
+    "    return score > 100"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -398,31 +1454,515 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 122,
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
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+       "    .dataframe tbody tr th:only-of-type {\n",
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+       "\n",
+       "    .dataframe tbody tr th {\n",
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+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>GRE Score</th>\n",
+       "      <th>TOEFL Score</th>\n",
+       "      <th>University Rating</th>\n",
+       "      <th>SOP</th>\n",
+       "      <th>LOR</th>\n",
+       "      <th>CGPA</th>\n",
+       "      <th>Research</th>\n",
+       "      <th>Chance of Admit</th>\n",
+       "      <th>GRE_CGPA</th>\n",
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+       "    <tr>\n",
+       "      <th>Serial No.</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
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+       "      <th></th>\n",
+       "      <th></th>\n",
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+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>337</td>\n",
+       "      <td>118</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.65</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.92</td>\n",
+       "      <td>337-9.65</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>316</td>\n",
+       "      <td>104</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>8.00</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.72</td>\n",
+       "      <td>316-8.0</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>322</td>\n",
+       "      <td>110</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>2.5</td>\n",
+       "      <td>8.67</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.80</td>\n",
+       "      <td>322-8.67</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>314</td>\n",
+       "      <td>103</td>\n",
+       "      <td>2</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>8.21</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.65</td>\n",
+       "      <td>314-8.21</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>330</td>\n",
+       "      <td>115</td>\n",
+       "      <td>5</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>9.34</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.90</td>\n",
+       "      <td>330-9.34</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>381</th>\n",
+       "      <td>324</td>\n",
+       "      <td>110</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>9.04</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.82</td>\n",
+       "      <td>324-9.04</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>382</th>\n",
+       "      <td>325</td>\n",
+       "      <td>107</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>9.11</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.84</td>\n",
+       "      <td>325-9.11</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>383</th>\n",
+       "      <td>330</td>\n",
+       "      <td>116</td>\n",
+       "      <td>4</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>4.5</td>\n",
+       "      <td>9.45</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.91</td>\n",
+       "      <td>330-9.45</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>384</th>\n",
+       "      <td>312</td>\n",
+       "      <td>103</td>\n",
+       "      <td>3</td>\n",
+       "      <td>3.5</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>8.78</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.67</td>\n",
+       "      <td>312-8.78</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>385</th>\n",
+       "      <td>333</td>\n",
+       "      <td>117</td>\n",
+       "      <td>4</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>9.66</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.95</td>\n",
+       "      <td>333-9.66</td>\n",
+       "      <td>True</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>385 rows × 10 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "            GRE Score  TOEFL Score  University Rating  SOP  LOR  CGPA  \\\n",
+       "Serial No.                                                              \n",
+       "1                 337          118                  4  4.5  4.5  9.65   \n",
+       "2                 316          104                  3  3.0  3.5  8.00   \n",
+       "3                 322          110                  3  3.5  2.5  8.67   \n",
+       "4                 314          103                  2  2.0  3.0  8.21   \n",
+       "5                 330          115                  5  4.5  3.0  9.34   \n",
+       "...               ...          ...                ...  ...  ...   ...   \n",
+       "381               324          110                  3  3.5  3.5  9.04   \n",
+       "382               325          107                  3  3.0  3.5  9.11   \n",
+       "383               330          116                  4  5.0  4.5  9.45   \n",
+       "384               312          103                  3  3.5  4.0  8.78   \n",
+       "385               333          117                  4  5.0  4.0  9.66   \n",
+       "\n",
+       "            Research  Chance of Admit  GRE_CGPA  Decision  \n",
+       "Serial No.                                                 \n",
+       "1               True             0.92  337-9.65      True  \n",
+       "2               True             0.72   316-8.0      True  \n",
+       "3               True             0.80  322-8.67      True  \n",
+       "4               True             0.65  314-8.21      True  \n",
+       "5               True             0.90  330-9.34      True  \n",
+       "...              ...              ...       ...       ...  \n",
+       "381             True             0.82  324-9.04      True  \n",
+       "382             True             0.84  325-9.11      True  \n",
+       "383             True             0.91  330-9.45      True  \n",
+       "384             True             0.67  312-8.78      True  \n",
+       "385             True             0.95  333-9.66      True  \n",
+       "\n",
+       "[385 rows x 10 columns]"
+      ]
+     },
+     "execution_count": 122,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "admissions[\"Decision\"] = toefl_condition(admissions[\"TOEFL Score\"])\n",
+    "admissions"
+   ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
+   "cell_type": "markdown",
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "source": [
+    "Create a column called `decision2` in the `admissions` dataframe. Assign 1 to this column if the value of `SOP` is greater than 3 and 0 otherwise.    \n",
+    "HINT (use np.where)"
+   ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 126,
    "metadata": {},
    "outputs": [],
-   "source": []
+   "source": [
+    "admissions[\"decision2\"] = np.where(admissions[\"SOP\"] > 3, 1, 0)"
+   ]
   },
   {
-   "cell_type": "markdown",
+   "cell_type": "code",
+   "execution_count": 127,
    "metadata": {},
+   "outputs": [
+    {
+     "data": {
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+       "      <th>TOEFL Score</th>\n",
+       "      <th>University Rating</th>\n",
+       "      <th>SOP</th>\n",
+       "      <th>LOR</th>\n",
+       "      <th>CGPA</th>\n",
+       "      <th>Research</th>\n",
+       "      <th>Chance of Admit</th>\n",
+       "      <th>GRE_CGPA</th>\n",
+       "      <th>Decision</th>\n",
+       "      <th>decision2</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Serial No.</th>\n",
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+       "      <th>1</th>\n",
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+       "      <td>316-8.0</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0</td>\n",
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+       "      <th>3</th>\n",
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+       "      <td>3.5</td>\n",
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+       "      <td>True</td>\n",
+       "      <td>0</td>\n",
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+       "    <tr>\n",
+       "      <th>5</th>\n",
+       "      <td>330</td>\n",
+       "      <td>115</td>\n",
+       "      <td>5</td>\n",
+       "      <td>4.5</td>\n",
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+       "      <td>0.90</td>\n",
+       "      <td>330-9.34</td>\n",
+       "      <td>True</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
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+       "      <td>116</td>\n",
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+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>385</th>\n",
+       "      <td>333</td>\n",
+       "      <td>117</td>\n",
+       "      <td>4</td>\n",
+       "      <td>5.0</td>\n",
+       "      <td>4.0</td>\n",
+       "      <td>9.66</td>\n",
+       "      <td>True</td>\n",
+       "      <td>0.95</td>\n",
+       "      <td>333-9.66</td>\n",
+       "      <td>True</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>385 rows × 11 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "            GRE Score  TOEFL Score  University Rating  SOP  LOR  CGPA  \\\n",
+       "Serial No.                                                              \n",
+       "1                 337          118                  4  4.5  4.5  9.65   \n",
+       "2                 316          104                  3  3.0  3.5  8.00   \n",
+       "3                 322          110                  3  3.5  2.5  8.67   \n",
+       "4                 314          103                  2  2.0  3.0  8.21   \n",
+       "5                 330          115                  5  4.5  3.0  9.34   \n",
+       "...               ...          ...                ...  ...  ...   ...   \n",
+       "381               324          110                  3  3.5  3.5  9.04   \n",
+       "382               325          107                  3  3.0  3.5  9.11   \n",
+       "383               330          116                  4  5.0  4.5  9.45   \n",
+       "384               312          103                  3  3.5  4.0  8.78   \n",
+       "385               333          117                  4  5.0  4.0  9.66   \n",
+       "\n",
+       "            Research  Chance of Admit  GRE_CGPA  Decision  decision2  \n",
+       "Serial No.                                                            \n",
+       "1               True             0.92  337-9.65      True          1  \n",
+       "2               True             0.72   316-8.0      True          0  \n",
+       "3               True             0.80  322-8.67      True          1  \n",
+       "4               True             0.65  314-8.21      True          0  \n",
+       "5               True             0.90  330-9.34      True          1  \n",
+       "...              ...              ...       ...       ...        ...  \n",
+       "381             True             0.82  324-9.04      True          1  \n",
+       "382             True             0.84  325-9.11      True          0  \n",
+       "383             True             0.91  330-9.45      True          1  \n",
+       "384             True             0.67  312-8.78      True          1  \n",
+       "385             True             0.95  333-9.66      True          1  \n",
+       "\n",
+       "[385 rows x 11 columns]"
+      ]
+     },
+     "execution_count": 127,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "Create a column called `decision2` in the `admissions` dataframe. Assign 1 to this column if the value of `SOP` is greater than 3 and 0 otherwise.    \n",
-    "HINT (use np.where)"
+    "admissions"
    ]
   },
   {
@@ -435,9 +1975,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "ironhack",
    "language": "python",
-   "name": "python3"
+   "name": "ironhack"
   },
   "language_info": {
    "codemirror_mode": {
@@ -449,7 +1989,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.8"
+   "version": "3.11.5"
   },
   "toc": {
    "base_numbering": "",