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7. The average UK adult drinks an average of 17.5 gallons of coffee per year. Assume the amount of coffee consumed is normally distributed with

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7. The average UK adult drinks an average of 17.5 gallons of coffee per year. Assume the amount of coffee consumed is normally distributed with a standard deviation of 2.8 hours. Find the probability that a randomly selected UK adult drinks between 15.0 and 22.0 gallons of coffee per year

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