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At one university, the mean distance commuted to campus by students is 17.0 miles, with a standard deviation of 4.1 miles. Suppose that the commute

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At one university, the mean distance commuted to campus by students is 17.0 miles, with a standard deviation of 4.1 miles. Suppose that the commute distances are normally distributed. Complete the following statements. (a) Approximately 95% of the students have commute distances between |miles and miles . (b) Approximately 7 of the students have commute distances between 12.9 miles and 21.1 miles

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