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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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<.
Los Angeles workers have an average commute of 32 minutes. Suppose the LA commute time is normally
distributed with a standard deviation of 14 minutes. Let X represent the commute time for a randomly
selected LA worker.
a. What is the distribution of X? X N(
b. Find the probability that a randomly selected LA worker has a commute that is longer than 33 minutes.
Round to 4 decimal places.
c. Find the 85th percentile for the commute time of LA workers. Round to 2 decimal places.
minutes
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Transcribed Image Text:Question 20
<.
Los Angeles workers have an average commute of 32 minutes. Suppose the LA commute time is normally
distributed with a standard deviation of 14 minutes. Let X represent the commute time for a randomly
selected LA worker.
a. What is the distribution of X? X N(
b. Find the probability that a randomly selected LA worker has a commute that is longer than 33 minutes.
Round to 4 decimal places.
c. Find the 85th percentile for the commute time of LA workers. Round to 2 decimal places.
minutes
Question Help:
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