diff --git a/pandas_and_tidying_ex5.py b/pandas_and_tidying_ex5.py
index e69de29..6c5a969 100644
--- a/pandas_and_tidying_ex5.py
+++ b/pandas_and_tidying_ex5.py
@@ -0,0 +1 @@
+sam_mut.groupby('Mutator').mean()['Total Mutations']