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An economics professor decides to curve the grades of his class. In doing so, he decides to make it such that the students who score

An economics professor decides to curve the grades of his class. In doing so, he decides to make it such that the students who score in the top 9% receive an A. Assume a normal distribution among grades. How many standard deviations above the mean must a student get to receive an A? (Round your answer to 2 decimal places, if needed.)

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