Tompkins Associates reports that the mean clear height for a Class A warehouse in the United States is 22 feet. Suppose clear heights are normally distributed and that the standard deviation is 4 feet. A Class A warehouse in the United States is randomly selected.

(a)What is the probability that the clear height is greater than 18 feet?

(b)What is the probability that the clear height is less than 13 feet?

(c)What is the probability that the clear height is between 25 and 31 feet?

(Round the values of z to 2 decimal places. Round your answers to 4 decimal places.)