Suppose that the height of North adult American men varies according to a distribution that is approx. normal with the mean of 69 inches and a standard deviation of 3.7 inches. Using the 68-95-99.7 rule, between what 2 heights will APPROX 68% of the heights be centered about the mean?
A-61.6 inches and 76.4 inches
B-64.3 inches and 73.7 inches
C-69 inches and 72.7 inches
D-65.3 inches and 72.7 inches
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