Posted by **gertrude** on Tuesday, November 29, 2011 at 12:03pm.

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 80 people.

(a) How many would you expect to be between 159 and 171 cm tall

(b) How many would you expect to be taller than 160 cm

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