SAT, 22.12.2020 01:00 OinkFred

In an all boys school, the heights of the student body are normally distributed with a mean of 68 inches and a standard deviation of 4.5 inches. Using the empirical rule, what percentage of the boys are between 54.5 and 81.5 inches tall?

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In an all boys school, the heights of the student body are normally distributed with a mean of 68 in...