Question

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. Last year there were 63 inches of snow. How many standard deviations from the mean is that?

Answer 1

`2.5` standard deviations from the mean.

Explanation:

`63` inches of snow is `63-38=25` inches more than the mean of `38` inches, which is mean.

As standard deviation is `10`,

it is `25/10=2.5` standard deviations from the mean.