The number of hours per week that high school seniors spend on
computers is normally distributed...
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The number of hours per week that high school seniors spend oncomputers is normally distributed with a mean of 5 hours and astandard deviation of 2 hours. 70 students are chose at random, letxÌ… represent the mean number of hours spent on a computer for thisgroup. Find the probability that xÌ… is between 5.1 and 5.7.
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Let X is a random variable denoting the number of hoursper week that high school
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