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# 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 \$160 on back-to-college electronics?

(b) They spend more than \$370 on back-to-college electronics?

(c) They spend between \$115 and \$175 on back-to-college electronics?

(Round the values of z to 2 decimal places. Round your answers to 4 decimal places.)

(a) P(x < 160) =

enter the probability that they spend less than \$160 on back-to-college electronics

(b) P(x > 370) =

enter the probability that they spend more than \$370 on back-to-college electronics

(c) P(115 < x < 175) =

enter the probability that they spend between \$115 and \$175 on back-to-college electronics

p ( 1 1 5 &lt; x &lt; 1 7 5 ) = 0 . 1 1... View the full answer

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