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Statement of a problem № m68

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A normal population has a mean of 20.0 and a standard deviation of 4.0. a. Compute the z value associated with 25.0. b. What proportion of the population is between 20.0 and 25.0? c. What proportion of the population is less than 18.0?

Solution:
A normal population has a mean of 20.0 and a standard deviation of 4.0.
a. Comp

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