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December 20, 2014

Homework Help: math

Posted by apryl on Wednesday, August 24, 2011 at 8:38pm.

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 40 people.
(a) How many would you expect to be between 169 and 181 cm tall?
1

(b) How many would you expect to be taller than 170 cm?
2

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