Fix reported geometric development variable name

Author: salexanian

docs/friedland/chapter_7.ipynb

@@ -438,7 +438,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 13,
    "id": "10865a15",
    "metadata": {},
    "outputs": [
@@ -789,8 +789,8 @@
     "display(reported_volume_3.ldf_.round(decimals = 3))\n",
     "\n",
     "display(Markdown(\"##### Reported Claims - Geometric Average (Latest 4)\"))\n",
-    "reported_volume_3 = cl.Development(n_periods=4, average='geometric').fit_transform(tri['Reported Claims'])\n",
-    "display(reported_volume_3.ldf_.round(decimals = 3))\n",
+    "reported_geometric_4 = cl.Development(n_periods=4, average='geometric').fit_transform(tri['Reported Claims'])\n",
+    "display(reported_geometric_4.ldf_.round(decimals = 3))\n",
     "\n"
    ]
   },