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22. Assume that a school district has 10,000 6th graders. In this district, the average weight of a 6th grader is 80 pounds, with

22. Assume that a school district has 10,000 6th graders. In this district, the average weight of a 6th grader is 80 pounds, with a standard deviation of 20 pounds. Suppose you draw a random sample of 50 students. What is the probability that the average weight of a sampled student will be less than 75 pounds?

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