A town's average snowfall is 40 cm per year with a standard deviation of 12 cm.How many standard deviations from the mean is a snowfall of 64 cm?
A)0.44 standard deviations below the mean
B)2.00 standard deviations above the mean
C)2.00 standard deviations below the mean
D)1.60 standard deviations above the mean
E)0.44 standard deviations above the mean

Question

Quizplus · Accepted Answer

To find how many standard deviations from the mean a value is, you subtract the mean from the value and divide by the standard deviation: (64 cm - 40 cm) / 12 cm = 24 cm / 12 cm = 2.00 standard deviations above the mean.

A Town's Average Snowfall Is 40 Cm Per Year with a Standard