diff --git a/module3/exo2/exercice.ipynb b/module3/exo2/exercice.ipynb
index 9759aef6a59c541a624a29c7d5e20ccdf17127bc..19c7e1fcd5aff180553a0f75ae4e1b995615d813 100644
--- a/module3/exo2/exercice.ipynb
+++ b/module3/exo2/exercice.ipynb
@@ -589,11 +589,135 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "hideOutput": true
+   },
    "source": [
     "on conclut que le resultat est extremement surprisant telque le taux de mortalité chez les non fumeuses (31.4) est plus que cel des fumeuses (23.88)."
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "i=0\n",
+    "y=0\n",
+    "e=0\n",
+    "t=0\n",
+    "r=0\n",
+    "u=0\n",
+    "p=0\n",
+    "o=0\n",
+    "for j in range(0,1314):\n",
+    "    if int(data.values[j,2])>=18 & int(data.values[j,2])<=34:\n",
+    "        if 'Yes' in data.values[j,0]:\n",
+    "            y=y+1\n",
+    "            if 'Dead' in data.values[j,1]:\n",
+    "                i=i+1\n",
+    "    if int(data.values[j,2])>=35 & int(data.values[j,2])<=54:\n",
+    "        if 'Yes' in data.values[j,0]:\n",
+    "            e=e+1\n",
+    "            if 'Dead' in data.values[j,1]:\n",
+    "                t=t+1\n",
+    "    if int(data.values[j,2])>=55 & int(data.values[j,2])<=64:\n",
+    "        if 'Yes' in data.values[j,0]:\n",
+    "            r=r+1\n",
+    "            if 'Dead' in data.values[j,1]:\n",
+    "                u=u+1\n",
+    "    if int(data.values[j,2])>=65:\n",
+    "        if 'Yes' in data.values[j,0]:\n",
+    "            o=o+1\n",
+    "            if 'Dead' in data.values[j,1]:\n",
+    "                p=p+1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "(23.883161512027492, 23.883161512027492, 23.883161512027492, 85.71428571428571)"
+      ]
+     },
+     "execution_count": 22,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "(i/y)*100,(t/e)*100,(u/r)*100,(p/o)*100"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 23,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "i=0\n",
+    "y=0\n",
+    "e=0\n",
+    "t=0\n",
+    "u=0\n",
+    "r=0\n",
+    "p=0\n",
+    "o=0\n",
+    "for j in range(0,1314):\n",
+    "    if int(data.values[j,2])>=18 & int(data.values[j,2])<=34:\n",
+    "        if 'No' in data.values[j,0]:\n",
+    "            y=y+1\n",
+    "            if 'Dead' in data.values[j,1]:\n",
+    "                i=i+1\n",
+    "    if int(data.values[j,2])>=35 & int(data.values[j,2])<=54:\n",
+    "        if 'No' in data.values[j,0]:\n",
+    "            e=e+1\n",
+    "            if 'Dead' in data.values[j,1]:\n",
+    "                t=t+1\n",
+    "    if int(data.values[j,2])>=55 & int(data.values[j,2])<=64:\n",
+    "        if 'No' in data.values[j,0]:\n",
+    "            r=r+1\n",
+    "            if 'Dead' in data.values[j,1]:\n",
+    "                u=u+1\n",
+    "    if int(data.values[j,2])>=65:\n",
+    "        if 'No' in data.values[j,0]:\n",
+    "            o=o+1\n",
+    "            if 'Dead' in data.values[j,1]:\n",
+    "                p=p+1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "(31.420765027322407, 31.420765027322407, 31.420765027322407, 85.49222797927462)"
+      ]
+     },
+     "execution_count": 25,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "(i/y)*100,(t/e)*100,(u/r)*100,(p/o)*100"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "le taux de mortalité chez les deux fumeuses et non fumeuses varie brusquement chez les femmes agees (plus que 65ans) (85.49% chez le non fumeuses et 85.71% chez les fumeuses) alors que ce taux est presque constant pour les trois classes d'ages inferieur ! (31.42 chez les non fumeuses et 23.88% ches les fumeuses) ce qui montre que l'age est la cause principale de l'elevation du taux de mortalité malgre si elles sont fumeuses ou non ! \n",
+    "Ca revient à la faiblesse du système immunitaire chez les personnes plus que 65ans."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,