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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 40 people.
(a) How many would you expect to be between 158 and 172 cm tall?

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  • algebra/math -

    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 100 people.

    a) How many would you expect to be between 158 and 172 cm tall?

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

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