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The distribution of heights of adult males has a mean of 69 inches and a standard deviation of 4 inches. A random sample of 36 adult males is selected.
a) Completely describe the sampling distribution of x .
b) Find the probability that the average height will be more than 70 inches. .
c) Find the probability that the average height will be between 67.4 inches and 70.5 inches, inclusively.
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