Question: Sandy Allen is the world’s tallest woman with a height of 91.25 inches. Women have a mean height of 63.6 inches and a standard deviation of 2.5 inches.

a. What is the difference between Sandy’s height and the mean?

b. How many standard deviations is her height in reference to the mean?

c. How does here height convert to a “z score”?

d. Is her height considered “unusual”? If so, why?