A Tim Horton's has recently opened up in Edmonton. It is observed that, on any given morning, the time it takes for a car to be served after ordering in the drive-thru follows a normal distribution with μ = 6 minutes and σ = 2.4 minutes. a) What is the probability that it takes less than 5.6 minutes for a randomly selected car to be served after ordering? (Round your answer to four decimal places, if needed.) b) What is the probability that it takes more than 6.9 minutes for a randomly selected car to be served after ordering? (Round your answer to four decimal places, if needed.) Check

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 2E
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A Tim Horton's has recently opened up in Edmonton. It is observed that, on any given morning, the time it
takes for a car to be served after ordering in the drive-thru follows a normal distribution with μ = 6 minutes
and σ = 2.4 minutes.
a) What is the probability that it takes less than 5.6 minutes for a randomly selected car to be served after
ordering? (Round your answer to four decimal places, if needed.)
b) What is the probability that it takes more than 6.9 minutes for a randomly selected car to be served after
ordering? (Round your answer to four decimal places, if needed.)
Check
Transcribed Image Text:A Tim Horton's has recently opened up in Edmonton. It is observed that, on any given morning, the time it takes for a car to be served after ordering in the drive-thru follows a normal distribution with μ = 6 minutes and σ = 2.4 minutes. a) What is the probability that it takes less than 5.6 minutes for a randomly selected car to be served after ordering? (Round your answer to four decimal places, if needed.) b) What is the probability that it takes more than 6.9 minutes for a randomly selected car to be served after ordering? (Round your answer to four decimal places, if needed.) Check
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