Costco installs automobile tires on a first-come first-serve basis. The total time a customer needs to wait for the installation to be completed follows the normal distribution with a mean time of 106.3 minutes and a standard deviation of 18.5 minutes. What is the probability that a randomly selected customer will wait less than 100 minutes for his or her tires to be installed? Round to four decimal places.1 of 10 of 10 of 10 of 11 of 1 A.0.4761 . 0.1151O C. 0.3669O D. 0.2578
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Costco installs automobile tires on a first-come first-serve basis. The total time a customer needs to wait for the installation to be completed follows the normal distribution with a mean time of 106.3 minutes and a standard deviation of 18.5 minutes. What is the probability that a randomly selected customer will wait between 80 and 95 minutes for his or her tires to be installed?
Haricharan G.
1.) Costco installs automobile tires on a first-come first-serve basis. The total time a customer needs to wait for the installation to be completed follows the normal distribution with a mean time of 106.3 minutes and a standard deviation of 18.5 minutes. What is the probability that a randomly selected customer will wait 100 minutes for his or her tires to be installed? 2.) Costco installs automobile tires on a first-come first-serve basis. The total time a customer needs to wait for the installation to be completed follows the normal distribution with a mean time of 106.3 minutes and a standard deviation of 18.5 minutes. What is the probability that a randomly selected customer will wait less than 100 minutes for his or her tires to be installed?
Avi Z.
Suppose the waiting times that customers spend in line to get into Costco are normally distributed. The mean is 14 minutes and the standard deviation is 3 minutes. a) Find the probability that a randomly selected customer waited less than 21 minutes. b) Find the probability that a randomly selected customer waited at most 17 minutes. c) Find the 67th percentile. d) Find and interpret the z-score for a waiting time of 9.5 minutes.
Maitreya E.
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