a. What is the distribution of X? X - N( 29 12 b. Find the probability that a randomly selected LA worker has a commute that is longer than 30 minutes. c. Find the 85th percentile for the commute time of LA workers. minutes
a. What is the distribution of X? X - N( 29 12 b. Find the probability that a randomly selected LA worker has a commute that is longer than 30 minutes. c. Find the 85th percentile for the commute time of LA workers. minutes
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Los Angles workers have Ana average commute of 29 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 12 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. I only need help on questions b and C.
B.) find the probability that a randomly selected LA worker has a commute that is longer than 30 minutes.
C.) find the 85th percentile for the commute time of LA workers.
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