diff --git a/06_StatisticalInference/homework/hw1.md b/06_StatisticalInference/homework/hw1.md
index 4a7add5f0..88d4398a9 100644
--- a/06_StatisticalInference/homework/hw1.md
+++ b/06_StatisticalInference/homework/hw1.md
@@ -185,7 +185,7 @@ What is the variance expressed to 1 decimal place?
 4. 17.0
 
 *** .hint
-The variance is $E[X^2] - E[X^2]$
+The variance is $E[X^2] - (E[X]^2)$
 
 *** .explanation