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Probability at a Fast Food Restaurant

A study showed that the average number of hours children in the U.S. watch television each day is 4 hours with a population standard deviation of 1.6 hours. If a group of 64 children is selected at random, what is probability that the average time these children watch television is more than 4.3 hours? Include an appropriate diagram of the bell shaped curve with the important values identified.

The average hourly wage of workers at a fast food restaurant is $7.85 with a standard deviation of $0.35. Find the following probabilities, include an appropriate diagram of the bell shaped curve.

The probability that an employee makes more than $8.00 an hour?

The probability that an employee makes between $7.50 and $8.00 an hour?

Solution Summary

The solution identifies the probabilities for television and fast food restaurants.

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