The heights of 500 boys are measured and found to be normally distrubuted with a mean of 66 inches and a standard deviation of 2 inches.About how many boys are taller than 68 inches?

Answer 1

Z = (score-mean)/SD

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. Multiply by 500.

Answer 2

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