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. Sixty two percent of 12th graders attend school in a particular urban school district. If a sample of 500 12th grade children are selected,

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. Sixty two percent of 12th graders attend school in a particular urban school district. If a sample of 500 12th grade children are selected, find the probability that at least 290 are actually enrolled in school; exactly 300 are enrolled, from 300 to 320 are enrolled

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