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

                                                      63 - 38
Just calculate the z-score:    y = ---------------- = 25/10, or   z = 2.5 (answer)
                                                          10