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# Average Family Spending

According to an NRF survey conducted by BIGresearch, the average family spends about \$237 on electronics (computers, cell phones, etc.) in back-to-college spending per student. Suppose back-to-college family spending on electronics is normally distributed with a standard deviation of \$54. If a family of a returning college student is randomly selected, what is the probability that:

(a) They spend less than \$150 on back-to-college electronics?

(b) They spend more than \$390 on back-to-college electronics?

(c) They spend between \$140 and \$180 on back-to-college electronics?

(Round the values of z to 2 decimal places. Round your answers to 4 decimal places.) (a) P(x < 150) = (b) P(x > 390) = (c) P(140 < x < 180) =

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