According to an NRF survey conducted by BIGresearch, the average family spends about $ 229 on electronics (computers, cell phones, etc.) in back-to-college spending per student. Suppose...

Extracted text: According to an NRF survey conducted by BIGresearch, the average family spends about $ 229 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 $ 165 on back-to-college electronics? (b) They spend more than $ 370 on back-to-college electronics? (c) They spend between $ 120 and $ 190 on back-to-college electronics? (Round the values of z to 2 decimal places, e.g. 1.25. Round your answers to 4 decimal places, e.g. 0.2531.) (a) P(x < 165)="(b)" p(x=""> 370) = (c) P( 120 < x="">< 190)="">