(a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 71 seconds? The probability that a randomly selected car will get through the restaurant's drive-through in less than 71 seconds is (Round to four decimal places as needed.) (b) What is the probability that a randomly selected car will spend more than 187 seconds in the restaurant's drive-through? The probability that a randomly selected car will spend more than 187 seconds in the restaurant's drive-through is (Round to four decimal places as needed.) (c) What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through? The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is (Round to four decimal places as needed.)

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