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The Mean Travel Time to Work Is 25

Question 118

Multiple Choice

The mean travel time to work is 25.2 minutes (U.S. Census) . Further, suppose that commute time follows a log-normal distribution with a standard deviation of 10 minutes. What is the probability a randomly selected U.S. worker has a commute time of less than 20 minutes?


A) 30.15%
B) 33.97%
C) 65.91%
D) 69.85%

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