Los Angeles workers have an 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. a. What is the distribution of X? X- N( 29 V 12 b. Find the probability that a randomly selected LA worker has a commute that is longer than 34 minutes. minutes c. Find the 90th percentile for the commute time of LA workers.

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...
icon
Related questions
Question
Los Angeles workers have an average commute of 29 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 12 minutes. Let X the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. Need help on questions B, and C.
Los Angeles workers have an 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.
a. What is the distribution of X? X N( 29
V 12
b. Find the probability that a randomly selected LA worker has a commute that is longer than 34 minutes.
minutes
c. Find the 90th percentile for the commute time of LA workers.
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 12 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X N( 29 V 12 b. Find the probability that a randomly selected LA worker has a commute that is longer than 34 minutes. minutes c. Find the 90th percentile for the commute time of LA workers.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON