diff --git a/transform.Rmd b/transform.Rmd
index 950c9f5..049fc92 100644
--- a/transform.Rmd
+++ b/transform.Rmd
@@ -534,7 +534,7 @@ ggplot(flights, aes(air_time - airtime2)) + geom_histogram()
 
 1.  Currently `dep_time()` and `arr_time()` are convenient to look at, but
     hard to compute with because they're not really continuous numbers. 
-    Convert them to a more convenient represention of number of minutes
+    Convert them to a more convenient representation of number of minutes
     since midnight.
     
 1.  Compute the scheduled time by adding `dep_delay` to `dep_time`. Plot