diff --git a/EDA.Rmd b/EDA.Rmd
index 783d14e..825a3c9 100644
--- a/EDA.Rmd
+++ b/EDA.Rmd
@@ -423,7 +423,7 @@ In the next section we'll explore some techniques for improving this comparison.
 
 1.  What happens to missing values in a histogram?
     What happens to missing values in a bar chart?
-    Why is there a difference?
+    Why is there a difference in how missing values are handled in histograms and bar charts?
 
 2.  What does `na.rm = TRUE` do in `mean()` and `sum()`?