fixes to Ex 6

Fixed question mark and answer to last question

Author: mbakker7

notebook9_discrete_random_variables/py_exploratory_comp_9_sol.ipynb

@@ -75,7 +75,7 @@
     {
      "data": {
       "text/plain": [
-       "array([1, 0, 0, 0, 1, 1, 0, 1, 0, 1])"
+       "array([0, 1, 0, 1, 0, 0, 1, 1, 1, 0])"
       ]
      },
      "execution_count": 3,
@@ -613,7 +613,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Compute the probability that the Dog will predict the correct winner based on 1000 poles of 5000 people? Does the probability that The Dog predicts the correct winner increase significantly when he poles 5000 people?"
+    "Compute the probability that the Dog will predict the correct winner based on 1000 poles of 5000 people. Does the probability that The Dog predicts the correct winner increase significantly when he poles 5000 people?"
    ]
   },
   {
@@ -944,7 +944,7 @@
      "output_type": "stream",
      "text": [
       "1000 poles of 5000 people\n",
-      "Probability that The Dog predicts candidate A to win: 0.014\n"
+      "Probability that The Dog predicts candidate A to win: 0.07\n"
      ]
     }
    ],
@@ -961,7 +961,7 @@
     "    else:\n",
     "        Bwins += 1\n",
     "print('1000 poles of 5000 people')\n",
-    "print('Probability that The Dog predicts candidate A to win:', Awins / 5000)"
+    "print('Probability that The Dog predicts candidate A to win:', Awins / 1000)"
    ]
   },
   {