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March 5, 2015

Homework Help: statistics

Posted by Anonymous on Tuesday, November 16, 2010 at 3:35pm.

The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5 hours.

What is the probability that in a random sample of five North American adult at least two of them watch television for more than 7 hours per day?

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