A retail clothing store chain specializing in suits and accessories for tall men. The proposed height cutoff is 6 ft. 4 in. (76 in.) - the store will stock clothing only for men 6 ft. 4 in. or taller. Information: The average height of adult males in the US is 5 ft. 9 in. (69 in.) with a standard deviation of 3 in.. It is reasonable to assume that heights follow a normal distribution.

-What is the probability that a randomly selected US male (over 18 years old) will be tall enough to shop at the proposed store?