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According to Harper’s magazine, the time spend by kids in front of the television set per...

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Basic Math

According to Harper’s magazine, the time spend by kids in frontof the television set per year can be modeled by a normaldistribution with a mean equal to 1500 hours and a standarddeviation equal to 250 hours. If 25 kids are randomly selected fromthis population, what is the probability that the average of theirtimes spent watching television is at least 1650 hours peryear?

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