Los Angeles workers have an average commute of 29 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. a. What is the distribution of X? X-N(29 b. Find the probability that a randomly selected LA worker has a commute that is longer than 33 minutes. Round to 4 decimal places. 0.6230 ✓,13 0 0 c. Find the 90th percentile for the commute time of LA workers. Round to 2 decimal places. minutes
Los Angeles workers have an average commute of 29 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. a. What is the distribution of X? X-N(29 b. Find the probability that a randomly selected LA worker has a commute that is longer than 33 minutes. Round to 4 decimal places. 0.6230 ✓,13 0 0 c. Find the 90th percentile for the commute time of LA workers. Round to 2 decimal places. minutes
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:Los Angeles workers have an average commute of 29 minutes. Suppose the LA commute time is normally
distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly
selected LA worker.
a. What is the distribution of X? X-N 29
b. Find the probability that a randomly selected LA worker has a commute that is longer than 33 minutes.
Round to 4 decimal places. 0.6230
c. Find the 90th percentile for the commute time of LA workers. Round to 2 decimal places.
minutes
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