Question

Suppose you did a survey of male shoes size and the mean of that survey was size 10 with a standard deviation of 1.5. What is the Z-score of a size 8.5?

Answer 1

-1

Explanation:

From 10 to 8.5 is - 1.5

this is -1 S.D. below the mean

(8.5 - 10)/1.5 = -1