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Exam grades across all sections of introductory statistics at a large university are approximately normally distributed with a mean of and a standard deviation of

Exam grades across all sections of introductory statistics at a large university are approximately normally distributed with a mean of and a standard deviation of . Use the normal distribution to answer the following questions.

(a)What percent of students scored above an 88?

(b) If the highest9% of students will be given a grade of A, what is the cutoff to get an A?

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