The heights of all the newborns in a certain country are
normally distributed, with a mean of 20 inches and a standard
deviation of 2 inches. A mother just delivered a baby that is 21
inches long. Which of the following represents the a score of
the baby's height? (Round your answer to two decimal
places.)
A. 0.50
B.-0.50
C.-1.50
D.1.50