# Standard Deviation of Height

The average height of a certain age group of people is 53 inches. The standard deviation is 4 inches. If the variable is normally distributed, find the probability that a selected individual's height will be what?

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Let X be the random variable denoting the height of a random person. Then X ~ N(53, 4^2).

Then if the question asked "what is the probability that ...

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The expert examines the standard deviation of height.

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