Statistics

The distribution of heights of American women aged 18 to 24 is approximately normally distributed with mean 65.5 inches and standard deviation 2.5 inches. What is the probability that a randomly selected woman is over 70 inches tall?

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  1. Z = (score-mean)/SD

    Calculate the Z score and find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to that Z score.

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