Math 2275 - Spring 2021 ents
Azelea Garcia a
5
Homework: Ch 7 Technology Demo
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7.2.40-T
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A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 149.5 seconds. Assuming drive-through times are normally distributed with a
standard deviation of 26 seconds, complete parts (a) through (d) below.
(a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 115 seconds?
The probability that a randomly selected car will get through the restaurant's drive-through in less than 115 seconds is 1
(Round to four decimal places as needed.)