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uestion IV The speeds of a random sample of 100 cars are recorded as they pass a highway checkpoint. The results are summarized in the

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uestion IV The speeds of a random sample of 100 cars are recorded as they pass a highway checkpoint. The results are summarized in the frequency distribution below. Approximate the sample mean. O-A. 63.9 mph O B. 54.5 mph Speed (mph) Cars O C. 61 0 mph 30 -39 3 O D. 58 1 mph 40 -49 17 50-59 43 60 -69 15 70-79 22

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