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The heights of 18-year-old men are approximately normally distributed with mean 68 inches and standard deviation...

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Statistics

The heights of 18-year-old men are approximately normallydistributed with mean 68 inches and standard deviation 3 inches.What is the probability that the average height of a sample oftwenty 18-year-old men will be less than 69 inches? Round youranswer to four decimal places.

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