diff --git a/pr.ipynb b/pr.ipynb
index bcdd62e..04e7a91 100644
--- a/pr.ipynb
+++ b/pr.ipynb
@@ -512,10 +512,10 @@
       },
       "source": [
         "count_no_sub = len(data[data['y']=='no'])\n",
-        "count_sub = len(data[data['y']=='yes'])\n",
-        "pct_of_no_sub = count_no_sub/(count_no_sub+count_sub)\n",
+        "countsub = len(data[data['y']=='yes'])\n",
+        "pct_of_no_sub = count_no_sub/(count_no_sub+countsub)\n",
         "print(\"percentage of no subscription is\", pct_of_no_sub*100)\n",
-        "pct_of_sub = count_sub/(count_no_sub+count_sub)\n",
+        "pct_of_sub = countsub/(count_no_sub+countsub)\n",
         "print(\"percentage of subscription\", pct_of_sub*100)"
       ],
       "execution_count": 0,
@@ -3697,4 +3697,4 @@
       "outputs": []
     }
   ]
-}
\ No newline at end of file
+}