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In one statistics course, students reported studying an average of 9.5 hours a week, with a standard deviation of 1.5. The professor tells David his

In one statistics course, students reported studying an average of 9.5 hours a week, with a standard deviation of 1.5. The professor tells David his study time is at the 67th percentile. How many hours does David study each week?

8.84

10.925

8.075

10.16

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