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8. Historic data shows that a polishing machine creates 5 scratches per windshield. We choose a sample of 10 windshields. What is the probability that

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8. Historic data shows that a polishing machine creates 5 scratches per windshield. We choose a sample of 10 windshields. What is the probability that the total number of scratches on the ten windshields is 20? Explain your reasoning. [10 points] 64 .F

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