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 $135 on back-to-college electronics? (b) They spend more than $380 on back-to-college electronics? (c) They spend between $110 and $180 on back-to-college electronics? (a) P(x < 135) = enter the probability that they spend less than $135 on back-to-college electronics (b) P(x > 380) = enter the probability that they spend more than $380 on back-to-college electronics (c) P(110 < x < 180) = enter the probability that they spend between $110 and $180 on back-to-college electronics
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
(a) They spend less than $135 on back-to-college electronics?
(b) They spend more than $380 on back-to-college electronics?
(c) They spend between $110 and $180 on back-to-college electronics?
(a) P(x < 135) = enter the probability that they spend less than $135 on back-to-college electronics
(b) P(x > 380) = enter the probability that they spend more than $380 on back-to-college electronics
(c) P(110 < x < 180) = enter the probability that they spend between $110 and $180 on back-to-college electronics
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