A Commuter Travels Many Miles to Work Each Morning

Multiple Choice

A commuter travels many miles to work each morning.She has timed this trip 5 times during the last month.The time (in minutes) required to make this trip was 38, 33, 36, 47, and 41.What is the standard deviation for these sample data?

A) 28.5
B) 11
C) 22.8
D) 5.34
E) 4.77