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A researcher in the town of Killeen did a survey with children. He discovered that thhey watche TV an average of 20 hr per week (standard diviation = 2.0 hr, and the data are normally distributed) If a child is chosen at random in the town of Killeen, what is the probability that he or she watches TV for more than 22 hr per week?

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2.5 or evr4

Posted on Jun 24, 2010

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