After a Particular Heavy Snowstorm, the Depth of Snow Reported

Multiple Choice

After a particular heavy snowstorm, the depth of snow reported in a mountain village followed a uniform distribution over the interval from 15 to 22 inches of snow. Find the standard deviation of the snowfall amounts.

A) 18.5 inches
B) 4.08 inches
C) 2.02 inches
D) 1.42 inches