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suppose that people's heights (in centimeters) are normaly distributed, with a mean of 170 and a...

suppose that people's heights (in centimeters) are normaly distributed, with a mean of 170 and a standard deviation of 5 we find the heights of 40 people

a. how many would you expect to be between 160 and 180 cm tall

b. how many would you expect to bw taller than 165 cm
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