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Mathematics, 27.09.2019 02:00 milkshakegrande101
Astudy found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 157.4 seconds. assuming drive-through times are normally distributed with a standard deviation of 33 seconds, complete parts below:
(a) what is the probability that a randomly selected car will get through the restaurant's drive-through in less than 105 seconds? the probability that a randomly selected car will get through the restaurant's drive-through in less than 105 seconds is (round to four decimal places as needed.)
(b) what is the probability that a randomly selected car will spend more than 195 seconds in the restaurant's drive-through? the probability that a randomly selected car will spend more than 195 seconds in the restaurant's drive-through is (round to four decimal places as needed)
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Astudy found that the mean amount of time cars spent in drive-throughs of a certain fast-food restau...
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