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  1. 20 hours ago · Statistics Quiz 3. The heights of adult men in America are normally distributed, with a mean of 69.5 inches and a standard deviation of 2.69 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.5 inches and a standard deviation of 2.51 inches. a) If a man is 6 feet 3 inches tall, what is his z-score ...