4. height (in inches) of basketball players has a bell-shaped distribution with mean 70.5 inches and
standard deviation 2.50 inches. a height of 75 inches is at what percentile?

5. assume that the finishing times in a new york city 15-kilometer road race are normally distributed
with a mean of 75 minutes and a standard deviation of 10 minutes. let x be a randomly selected
finishing time. find
a. p (x> 72)
b. p (52 < x < 70)
c. find p90 (the 90 percentile point)