Mathematics, 08.09.2020 14:01 lillianbrowning10
A study found that the mean amount of time cars spent in drive-through of a certain fast-food restaurant was 136.6400 seconds. Assuming drive-through times are normally distributed with a standard deviation of 33.4000 seconds.
a) What is the probability that a randomly selected car will spend more than 179 seconds in the restaurant's drive-through?
b) What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through?
Answers: 3
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