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Consider a school district that has 10,000 11th graders. In this district, the average weight of an 11th grader is 45 kg, with a standard

Consider a school district that has 10,000 11th graders. In this district, the average weight of

an 11th grader is 45 kg, with a standard deviation of 10 kg. Suppose you draw a random sample

of 50 learners. What is the probability that the average weight of a sampled student will be

less than 42.5 kg?

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