Update notebook.ipynb

TimeSeries/2-ARIMA/solution/notebook.ipynb

@@ -354,13 +354,7 @@
     "print(results.summary())\n"
    ]
   },
-  {
+
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Next we display the distribution of residuals. A zero mean in the residuals may indicate that there is no bias in the prediction. "
-   ]
-  },
   {
    "cell_type": "markdown",
    "metadata": {},