What is the probability that sample mean height is greater

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The heights of South African men are normally distributed with a mean of 69 inches and a standard deviation of 4 inches. What is the probability that a randomly selected South African man is taller than 72 inches? If a random sample of three South African men were selected at random, what is the probability that the sample mean height is greater than 72 inches? How do you do this two-part question?

Reference no: EM13149239

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