diff --git a/your-code/main.ipynb b/your-code/main.ipynb
index cdc1acb..6bc6b03 100644
--- a/your-code/main.ipynb
+++ b/your-code/main.ipynb
@@ -14,12 +14,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [],
    "source": [
     "# import numpy and pandas\n",
-    "\n"
+    "\n",
+    "import pandas as pd\n",
+    "import numpy as np\n",
+    "\n",
+    "# Libraries\n",
+    "import math \n",
+    "import matplotlib.pyplot as plt # viz\n",
+    "import scipy.stats as sts # stats\n",
+    "import statsmodels.api as sm\n",
+    "import statsmodels.formula.api as smf\n"
    ]
   },
   {
@@ -35,7 +44,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -53,12 +62,155 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "metadata": {},
-   "outputs": [],
+   "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>#</th>\n",
+       "      <th>Name</th>\n",
+       "      <th>Type 1</th>\n",
+       "      <th>Type 2</th>\n",
+       "      <th>Total</th>\n",
+       "      <th>HP</th>\n",
+       "      <th>Attack</th>\n",
+       "      <th>Defense</th>\n",
+       "      <th>Sp. Atk</th>\n",
+       "      <th>Sp. Def</th>\n",
+       "      <th>Speed</th>\n",
+       "      <th>Generation</th>\n",
+       "      <th>Legendary</th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>0</th>\n",
+       "      <td>1</td>\n",
+       "      <td>Bulbasaur</td>\n",
+       "      <td>Grass</td>\n",
+       "      <td>Poison</td>\n",
+       "      <td>318</td>\n",
+       "      <td>45</td>\n",
+       "      <td>49</td>\n",
+       "      <td>49</td>\n",
+       "      <td>65</td>\n",
+       "      <td>65</td>\n",
+       "      <td>45</td>\n",
+       "      <td>1</td>\n",
+       "      <td>False</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>1</th>\n",
+       "      <td>2</td>\n",
+       "      <td>Ivysaur</td>\n",
+       "      <td>Grass</td>\n",
+       "      <td>Poison</td>\n",
+       "      <td>405</td>\n",
+       "      <td>60</td>\n",
+       "      <td>62</td>\n",
+       "      <td>63</td>\n",
+       "      <td>80</td>\n",
+       "      <td>80</td>\n",
+       "      <td>60</td>\n",
+       "      <td>1</td>\n",
+       "      <td>False</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>2</th>\n",
+       "      <td>3</td>\n",
+       "      <td>Venusaur</td>\n",
+       "      <td>Grass</td>\n",
+       "      <td>Poison</td>\n",
+       "      <td>525</td>\n",
+       "      <td>80</td>\n",
+       "      <td>82</td>\n",
+       "      <td>83</td>\n",
+       "      <td>100</td>\n",
+       "      <td>100</td>\n",
+       "      <td>80</td>\n",
+       "      <td>1</td>\n",
+       "      <td>False</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>3</th>\n",
+       "      <td>3</td>\n",
+       "      <td>VenusaurMega Venusaur</td>\n",
+       "      <td>Grass</td>\n",
+       "      <td>Poison</td>\n",
+       "      <td>625</td>\n",
+       "      <td>80</td>\n",
+       "      <td>100</td>\n",
+       "      <td>123</td>\n",
+       "      <td>122</td>\n",
+       "      <td>120</td>\n",
+       "      <td>80</td>\n",
+       "      <td>1</td>\n",
+       "      <td>False</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4</th>\n",
+       "      <td>4</td>\n",
+       "      <td>Charmander</td>\n",
+       "      <td>Fire</td>\n",
+       "      <td>NaN</td>\n",
+       "      <td>309</td>\n",
+       "      <td>39</td>\n",
+       "      <td>52</td>\n",
+       "      <td>43</td>\n",
+       "      <td>60</td>\n",
+       "      <td>50</td>\n",
+       "      <td>65</td>\n",
+       "      <td>1</td>\n",
+       "      <td>False</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "   #                   Name Type 1  Type 2  Total  HP  Attack  Defense  \\\n",
+       "0  1              Bulbasaur  Grass  Poison    318  45      49       49   \n",
+       "1  2                Ivysaur  Grass  Poison    405  60      62       63   \n",
+       "2  3               Venusaur  Grass  Poison    525  80      82       83   \n",
+       "3  3  VenusaurMega Venusaur  Grass  Poison    625  80     100      123   \n",
+       "4  4             Charmander   Fire     NaN    309  39      52       43   \n",
+       "\n",
+       "   Sp. Atk  Sp. Def  Speed  Generation  Legendary  \n",
+       "0       65       65     45           1      False  \n",
+       "1       80       80     60           1      False  \n",
+       "2      100      100     80           1      False  \n",
+       "3      122      120     80           1      False  \n",
+       "4       60       50     65           1      False  "
+      ]
+     },
+     "execution_count": 3,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "# Your code here:\n",
-    "\n"
+    "\n",
+    "pokemon.head()"
    ]
   },
   {
@@ -70,12 +222,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 4,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "Legendary\n",
+       "False    735\n",
+       "True      65\n",
+       "Name: count, dtype: int64"
+      ]
+     },
+     "execution_count": 4,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "# Your code here:\n",
-    "\n"
+    "pokemon['Legendary'].value_counts()\n"
    ]
   },
   {
@@ -87,11 +253,70 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "metadata": {},
-   "outputs": [],
+   "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>mean</th>\n",
+       "      <th>std</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Legendary</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>False</th>\n",
+       "      <td>417.213605</td>\n",
+       "      <td>106.760417</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>True</th>\n",
+       "      <td>637.384615</td>\n",
+       "      <td>60.937389</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "                 mean         std\n",
+       "Legendary                        \n",
+       "False      417.213605  106.760417\n",
+       "True       637.384615   60.937389"
+      ]
+     },
+     "execution_count": 5,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "# Your code here:\n",
+    "pokemon.groupby('Legendary')['Total'].agg(['mean', 'std'])\n",
+    "\n",
     "\n"
    ]
   },
@@ -106,12 +331,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Test Statistic (t): 25.83\n",
+      "P-Value: 0.00000000000000000000000000000000000000000000009358\n",
+      "\n"
+     ]
+    }
+   ],
    "source": [
     "# Your code here:\n",
-    "\n"
+    "\n",
+    "# filter legendary and non-legendary poekmons\n",
+    "legend = pokemon[pokemon[\"Legendary\"] == True]\n",
+    "non_legend = pokemon[pokemon[\"Legendary\"] == False]\n",
+    "\n",
+    "# perform two-sample t-test for independent samples\n",
+    "t_stat, p_value = sts.ttest_ind(legend['Total'], non_legend['Total'], equal_var=False)\n",
+    "print(f\"Test Statistic (t): {t_stat:.2f}\")\n",
+    "print(f\"P-Value: {p_value:.50f}\")\n",
+    "print()"
    ]
   },
   {
@@ -123,12 +367,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [],
    "source": [
     "# Your conclusions here:\n",
-    "\n"
+    "\n",
+    "# a very low p-value means that we can reject H0 (no difference between groups)\n",
+    "# magnitude of t-statistic shows that the difference between  the 2 groups is large relative to variability within each group \n"
    ]
   },
   {
@@ -140,11 +386,386 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 8,
    "metadata": {},
-   "outputs": [],
+   "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>#</th>\n",
+       "      <th>Name</th>\n",
+       "      <th>Type 2</th>\n",
+       "      <th>Total</th>\n",
+       "      <th>HP</th>\n",
+       "      <th>Attack</th>\n",
+       "      <th>Defense</th>\n",
+       "      <th>Sp. Atk</th>\n",
+       "      <th>Sp. Def</th>\n",
+       "      <th>Speed</th>\n",
+       "      <th>Generation</th>\n",
+       "      <th>Legendary</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Type 1</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",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>Bug</th>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "      <td>52</td>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "      <td>69</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Dark</th>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "      <td>21</td>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "      <td>31</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Dragon</th>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>21</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Electric</th>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>17</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Fairy</th>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "      <td>2</td>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "      <td>17</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Fighting</th>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>7</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Fire</th>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "      <td>24</td>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "      <td>52</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Flying</th>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>2</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "      <td>4</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Ghost</th>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>22</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Grass</th>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "      <td>37</td>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "      <td>70</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Ground</th>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>19</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "      <td>32</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Ice</th>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "      <td>11</td>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "      <td>24</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Normal</th>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "      <td>37</td>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "      <td>98</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Poison</th>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "      <td>13</td>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "      <td>28</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Psychic</th>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "      <td>19</td>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "      <td>57</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Rock</th>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>35</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "      <td>44</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Steel</th>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>22</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "      <td>27</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Water</th>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "      <td>53</td>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "      <td>112</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "            #  Name  Type 2  Total   HP  Attack  Defense  Sp. Atk  Sp. Def  \\\n",
+       "Type 1                                                                       \n",
+       "Bug        69    69      52     69   69      69       69       69       69   \n",
+       "Dark       31    31      21     31   31      31       31       31       31   \n",
+       "Dragon     32    32      21     32   32      32       32       32       32   \n",
+       "Electric   44    44      17     44   44      44       44       44       44   \n",
+       "Fairy      17    17       2     17   17      17       17       17       17   \n",
+       "Fighting   27    27       7     27   27      27       27       27       27   \n",
+       "Fire       52    52      24     52   52      52       52       52       52   \n",
+       "Flying      4     4       2      4    4       4        4        4        4   \n",
+       "Ghost      32    32      22     32   32      32       32       32       32   \n",
+       "Grass      70    70      37     70   70      70       70       70       70   \n",
+       "Ground     32    32      19     32   32      32       32       32       32   \n",
+       "Ice        24    24      11     24   24      24       24       24       24   \n",
+       "Normal     98    98      37     98   98      98       98       98       98   \n",
+       "Poison     28    28      13     28   28      28       28       28       28   \n",
+       "Psychic    57    57      19     57   57      57       57       57       57   \n",
+       "Rock       44    44      35     44   44      44       44       44       44   \n",
+       "Steel      27    27      22     27   27      27       27       27       27   \n",
+       "Water     112   112      53    112  112     112      112      112      112   \n",
+       "\n",
+       "          Speed  Generation  Legendary  \n",
+       "Type 1                                  \n",
+       "Bug          69          69         69  \n",
+       "Dark         31          31         31  \n",
+       "Dragon       32          32         32  \n",
+       "Electric     44          44         44  \n",
+       "Fairy        17          17         17  \n",
+       "Fighting     27          27         27  \n",
+       "Fire         52          52         52  \n",
+       "Flying        4           4          4  \n",
+       "Ghost        32          32         32  \n",
+       "Grass        70          70         70  \n",
+       "Ground       32          32         32  \n",
+       "Ice          24          24         24  \n",
+       "Normal       98          98         98  \n",
+       "Poison       28          28         28  \n",
+       "Psychic      57          57         57  \n",
+       "Rock         44          44         44  \n",
+       "Steel        27          27         27  \n",
+       "Water       112         112        112  "
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "# Your code here:\n",
+    "pokemon.groupby('Type 1').count()\n",
     "\n"
    ]
   },
@@ -157,12 +778,15 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [],
    "source": [
     "# Your code here:\n",
-    "\n"
+    "df_mean_std = pokemon.groupby('Type 1')['Total'].agg(['mean', 'std'])\n",
+    "water = df_mean_std.loc[['Water']]\n",
+    "\n",
+    "non_water = df_mean_std.drop('Water', axis=0)\n"
    ]
   },
   {
@@ -174,12 +798,25 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 10,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Test Statistic (t): -0.31\n",
+      "P-Value: 0.76\n"
+     ]
+    }
+   ],
    "source": [
     "# Your code here:\n",
-    "\n"
+    "\n",
+    "# perform two-sample t-test for independent samples\n",
+    "t_stat, p_value = sts.ttest_ind(water['mean'], non_water['mean'], equal_var=True)\n",
+    "print(f\"Test Statistic (t): {t_stat:.2f}\")\n",
+    "print(f\"P-Value: {p_value:.2f}\")"
    ]
   },
   {
@@ -191,12 +828,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [],
    "source": [
     "# Your conclusions here:\n",
-    "\n"
+    "# negative magnitude of t-statistic suggests that water pokemons total mean is lower than all non-water pokemons total points mean\n",
+    "# p-value > 0.05 suggesting that null hypothesis cannot be rejected\n"
    ]
   },
   {
@@ -210,12 +848,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 12,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Test Statistic (t): 4.33\n",
+      "P-Value: 0.000017\n"
+     ]
+    }
+   ],
    "source": [
     "# Your code here:\n",
-    "\n"
+    "from scipy.stats import ttest_rel\n",
+    "\n",
+    "\n",
+    "t_stat, p_value = sts.ttest_rel(pokemon['Attack'], pokemon['Defense'])\n",
+    "print(f\"Test Statistic (t): {t_stat:.2f}\")\n",
+    "print(f\"P-Value: {p_value:.6f}\")"
    ]
   },
   {
@@ -227,12 +879,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [],
    "source": [
     "# Your conclusions here:\n",
-    "\n"
+    "# positive t-test shows that mean of Attack is greater than mean of defense, and 4,33 magnitude suggests that the difference is large relative to the variability of the data\n",
+    "# p-value is very small, meaning that null hypothesis can be rejected\n"
    ]
   },
   {
@@ -244,12 +897,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 14,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Test Statistic (t): 0.85\n",
+      "P-Value: 0.393369\n"
+     ]
+    }
+   ],
    "source": [
     "# Your code here:\n",
-    "\n"
+    "\n",
+    "t_stat, p_value = sts.ttest_rel(pokemon['Sp. Atk'], pokemon['Sp. Def'])\n",
+    "print(f\"Test Statistic (t): {t_stat:.2f}\")\n",
+    "print(f\"P-Value: {p_value:.6f}\")"
    ]
   },
   {
@@ -261,12 +926,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [],
    "source": [
     "# Your conclusions here:\n",
-    "\n"
+    "# positive value of t-test meaning the mean of special attack is greater than mean of special defense, 0.85 magnitude is quite small suggesting the difference is small relative to the variability \n",
+    "# p-value > 0.05 suggesting that null hypothesis cannot be rejected"
    ]
   },
   {
@@ -280,12 +946,30 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 20,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Test Statistic (t): 4.33\n",
+      "P-Value: 0.000017\n"
+     ]
+    }
+   ],
    "source": [
     "# Your code here:\n",
-    "    \n",
+    "from scipy.stats import ttest_1samp\n",
+    "\n",
+    "pokemon['Atk_Def_Diff'] = pokemon['Attack'] - pokemon['Defense']\n",
+    "\n",
+    "t_stat, p_value = sts.ttest_1samp(pokemon['Atk_Def_Diff'], 0)\n",
+    "print(f\"Test Statistic (t): {t_stat:.2f}\")\n",
+    "print(f\"P-Value: {p_value:.6f}\")\n",
+    "\n",
+    "# confirmed\n",
+    "\n",
     "    "
    ]
   },
@@ -302,7 +986,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 17,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -319,7 +1003,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -336,7 +1020,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 19,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -354,7 +1038,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -368,7 +1052,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.9"
+   "version": "3.12.4"
   }
  },
  "nbformat": 4,