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Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. a) What percent of the data falls

Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15.

a) What percent of the data falls between 85 and 115?

b) Would it be surprising if a piece of data chosen at random was above 130? Why do you think that?

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