February 22, 2017

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?

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

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