diff --git a/module2/exo3/exercice.ipynb b/module2/exo3/exercice.ipynb
index b31f8c5fddb23efe9cd53d0dd2d6638ccb080a06..2bedd4bc73c5b76133f0773467a0aa73d7f0e28b 100644
--- a/module2/exo3/exercice.ipynb
+++ b/module2/exo3/exercice.ipynb
@@ -38,6 +38,33 @@
     "plt.show()"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "image/png": "iVBORw0KGgoAAAANSUhEUgAAAXcAAAD8CAYAAACMwORRAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAALEgAACxIB0t1+/AAAADl0RVh0U29mdHdhcmUAbWF0cGxvdGxpYiB2ZXJzaW9uIDIuMi4zLCBodHRwOi8vbWF0cGxvdGxpYi5vcmcvIxREBQAADj1JREFUeJzt3W+IHPd9x/HPx5Ebg88Qm1x8V5/NtcU+agR1c8ItuIQ9goPrJ7ahCdUDI5OU84MYHGJBjZ9EEAymXN0+KaU2NlHBcTmwXJsQ2hqjixoIJVqjSnKPs0Mqu2eLE8IK9j2J/+ibBzvqXqSTdnd2dnbvu+8XLLszO7O/7/7ut5+bm52Zc0QIAJDLVcMuAABQPcIdABIi3AEgIcIdABIi3AEgIcIdABLqGO62b7Z92Paq7TdtP1rMP2D7PdvHitu9gy8XANANdzrO3fa0pOmIeMP2dZKaku6X9A1JmxGxNPgyAQC92NVpgYg4Lel08fgj26uSbhp0YQCA8jpuuf/WwvaspCOSdkv6rqSHJH0o6aikxyLi3DbrLEpalKRrrrlm/pZbbum35hTOnz+vq67iKw+JvtiKvmijL9reeuutsxEx2cs6XYe77QlJP5H0ZEQcsn2jpLOSQtL31dp1880rvcbc3Fysra31Ul9aKysrajQawy5jJNAXbfRFG33RZrsZEXt6WaerX4u2r5b0kqQXIuKQJEXERkR8FhHnJT0r6c5eCwYADEY3R8tY0nOSViPi6S3zp7cs9oCkk9WXBwAoo+MXqpLukvSgpBO2jxXznpC01/Ydau2WOSXp4YFUCADoWTdHy/xUkrd56sfVlwMAqAJfRQNAQoQ7ACREuANAQoQ7ACREuANAQoQ7ACREuANAQoQ7ACREuANAQoQ7ACREuANAQoQ7ACREuANAQoQ7ACREuANAQoQ7ACREuANAQoQ7ACREuANAQoQ7ACREuAMjaGpqVrZru01NzQ77LaNiu4ZdAIBLbWy8IylqbM+1tYV6sOUOAAkR7gCQEOEOAAkR7gCQEOEOAAkR7gCQEOEOAAkR7gCQEOEOAAkR7gCQEOEOAAkR7gCQEOEOAAl1DHfbN9s+bHvV9pu2Hy3m32D7NdtvF/fXD75cAEA3utly/1TSYxHxh5L+VNK3bd8u6XFJr0fErZJeL6YBACOgY7hHxOmIeKN4/JGkVUk3SbpP0sFisYOS7h9UkQCA3jii+38IYHtW0hFJuyW9GxFf2PLcuYi4ZNeM7UVJi5I0OTk5v7y83GfJOWxubmpiYmLYZYyEndAXx4+f0CeffDzwdmZmZrS+vl5MzQ+8vbam5ufrbK+znTAu6rKwsNCMiD29rNN1uNuekPQTSU9GxCHbv+om3Leam5uLtbW1XupLa2VlRY1GY9hljISd0Be2Vcd/RlpaWtH+/Q1J9bTXZvWyoVeHnTAu6mK753Dv6mgZ21dLeknSCxFxqJi9YXu6eH5a0pleGgYADE43R8tY0nOSViPi6S1PvSppX/F4n6RXqi8PAFBGN/8g+y5JD0o6YftYMe8JSU9JWrb9LUnvSvr6YEoEAPSqY7hHxE/V2gG4na9WWw4AoAqcoQoACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACRHuAJAQ4Q4ACe0adgFAWVNTs9rYeGfYZQAjiXDHjtUK9qipNdfUDlANdssAQEKEOwAkRLgDQEIdw93287bP2D65Zd4B2+/ZPlbc7h1smQCAXnSz5f4DSfdsM//vIuKO4vbjassCAPSjY7hHxBFJH9RQCwCgIo7ofCiZ7VlJP4qI3cX0AUkPSfpQ0lFJj0XEucusuyhpUZImJyfnl5eXKyh759vc3NTExMSwyxgJZfui2WxKmq++oO1bq6WtmZlNra9P1NZeW1Pz83W21xmfkbaFhYVmROzpZZ2y4X6jpLNqHWT8fUnTEfHNTq8zNzcXa2trvdSX1srKihqNxrDLGAll+8K26j3OffBtLS2taP/+Rm3ttVndZEGd+Iy02e453EsdLRMRGxHxWUScl/SspDvLvA4AYDBKhbvt6S2TD0g6ebllAQD163j5AdsvSmpI+qLtdUnfk9SwfYdafzeekvTwAGsEAPSoY7hHxN5tZj83gFoAABXhDFUASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASKhjuNt+3vYZ2ye3zLvB9mu23y7urx9smQCAXnSz5f4DSfdcNO9xSa9HxK2SXi+mAQAjomO4R8QRSR9cNPs+SQeLxwcl3V9xXQCAPjgiOi9kz0r6UUTsLqZ/FRFf2PL8uYjYdteM7UVJi5I0OTk5v7y8XEHZO9/m5qYmJiaGXcZIKNsXzWZT0nz1BW3fWi1tzcxsan19orb22pqan6+zvc74jLQtLCw0I2JPL+sMPNy3mpubi7W1tV7qS2tlZUWNRmPYZYyEsn1hW1Ln8VuNetpaWlrR/v2N2tprs7rJgjrxGWmz3XO4lz1aZsP2dNHotKQzJV8HADAAZcP9VUn7isf7JL1STTkAgCp0cyjki5J+JmnO9rrtb0l6StLdtt+WdHcxDQAYEbs6LRARey/z1FcrrgUAUBHOUAWAhAh3AEiIcAeAhAh3VGZqala2e741m81S66FKny/1Myhzm5qaHfabHQsdv1AFurWx8Y7KnXizUnI9Ar46v1ZdJ01tbPBzqwNb7gCQEOEOAAkR7gCQEOEOAAkR7gCQEOEOAAkR7gBq1t0x9WXPf+C4+haOcwdQs26PqV/pcrkrG9fj6tlyB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECHcASIhwB4CEdvWzsu1Tkj6S9JmkTyNiTxVFAQD601e4FxYi4mwFrwMAqAi7ZQAgIUdE+ZXt/5V0TlJI+qeIeGabZRYlLUrS5OTk/PLycun2Mtnc3NTExMTA2zl+/IQ++eTjgbfTNt/zGjMzm1pfL9MXzVLtlVNPW+2+qPO9qeb2umur/Li4tL35+Tr7snoLCwvNnnd7R0Tpm6TfLe6/JOm/JX3lSsvfdtttgZbDhw/X0o6kkKKmW7m2lpYO19reKLfV7os639to9mX5cXFpezudpKMRveVzX7tlIuL94v6MpJcl3dnP6wEAqlE63G1fa/u6C48lfU3SyaoKAwCU18/RMjdKetn2hdf5YUT8WyVVAQD6UjrcI+KXkv6owloAABXhUEgASIhwB4CECHcASGjsw31qala2a7tNTc0O+y0DY+bzY/n5ruLaMjvaxsY7kqLG9lxbWwAk6deq6zM+Sp/vsd9yB4CMCHcASIhwB4CECHcASIhwB4CECHcASIhwB4CECPfatU6oaDabtZxUAWA8jf1JTPW7cELFiuo5sYKAB8YRW+4AkBDhDgAJEe4AkBDhDgAJEe4AkBDhDgAJEe4AkBDhDgAJEe4AkBDhDgAJEe4AkBDhDgAJEe4AkBDhDgAJEe4AkBDhDgAJEe4AkBDhDgAJEe4AkBDhDgAJEe4AkFBf4W77Httrtn9h+/GqigIA9Kd0uNv+nKR/kPTnkm6XtNf27VUVBgAor58t9zsl/SIifhkRH0v6F0n3VVMWAKAfjohyK9p/IemeiPirYvpBSX8SEY9ctNyipMVicrekk+XLTeWLks4Ou4gRQV+00Rdt9EXbXERc18sKu/pozNvMu+Q3RUQ8I+kZSbJ9NCL29NFmGvRFG33RRl+00Rdtto/2uk4/u2XWJd28ZXpG0vt9vB4AoCL9hPvPJd1q+/ds/46kv5T0ajVlAQD6UXq3TER8avsRSf8u6XOSno+INzus9kzZ9hKiL9roizb6oo2+aOu5L0p/oQoAGF2coQoACRHuAJBQLeHOZQp+m+1Ttk/YPlbmEKedzPbzts/YPrll3g22X7P9dnF//TBrrMtl+uKA7feKsXHM9r3DrLEOtm+2fdj2qu03bT9azB+7cXGFvuh5XAx8n3txmYK3JN2t1uGTP5e0NyL+Z6ANjzDbpyTtiYixO0HD9lckbUr654jYXcz7G0kfRMRTxS//6yPir4dZZx0u0xcHJG1GxNIwa6uT7WlJ0xHxhu3rJDUl3S/pIY3ZuLhCX3xDPY6LOrbcuUwB/l9EHJH0wUWz75N0sHh8UK3BnN5l+mLsRMTpiHijePyRpFVJN2kMx8UV+qJndYT7TZL+b8v0ukoWm0hI+g/bzeLyDOPuxog4LbUGt6QvDbmeYXvE9vFit036XRFb2Z6V9MeS/ktjPi4u6gupx3FRR7h3dZmCMXNXRHxZrStqfrv48xyQpH+U9AeS7pB0WtLfDrec+tiekPSSpO9ExIfDrmeYtumLnsdFHeHOZQouEhHvF/dnJL2s1q6rcbZR7Gu8sM/xzJDrGZqI2IiIzyLivKRnNSZjw/bVaoXZCxFxqJg9luNiu74oMy7qCHcuU7CF7WuLL0pk+1pJXxNXynxV0r7i8T5JrwyxlqG6EGaFBzQGY8O2JT0naTUint7y1NiNi8v1RZlxUcsZqsVhO3+v9mUKnhx4oyPK9u+rtbUutS7/8MNx6g/bL0pqqHU51w1J35P0r5KWJd0i6V1JX4+I9F80XqYvGmr96R2STkl6+MJ+56xs/5mk/5R0QtL5YvYTau1rHqtxcYW+2KsexwWXHwCAhDhDFQASItwBICHCHQASItwBICHCHQASItwBICHCHQAS+g3z0hMYu39EPAAAAABJRU5ErkJggg==\n",
+      "text/plain": [
+       "<Figure size 432x288 with 1 Axes>"
+      ]
+     },
+     "metadata": {
+      "needs_background": "light"
+     },
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "plt.hist(valeurs, bins=10, alpha=1, color='blue', edgecolor='black')\n",
+    "plt.grid(True)\n",
+    "ax = plt.gca()\n",
+    "ax.set_xlim([0,25])\n",
+    "ax.set_ylim([0,25])\n",
+    "plt.show()"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,