(Answered) Question more on mens heights the distribution of heights

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Question: More on men's heights. The distribution of heights of young men is approximately Normal with mean 70 inches and standard deviation 2.5 inches. Use the 68-95-99.7 rule to answer the following questions.

(a) What percentage of men are taller than 77.5 inches?

(b) Between what heights do the middle 68% of men fall?

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