11. A survey was conduced to measure the height of U.S. men. In the survey, respondents were grouped by age. In the 20-29 age group, the heights were normally distributed, with a mean of 69.6 inches and a standard deviation of 3 inches. A study participant is randomly selected. a. Find the probability that his height is less than 66 inches. b. Find the probability that his height is between 66 and 72 inches. c. Find the probability that his height is more than 72 inches.
11. A survey was conduced to measure the height of U.S. men. In the survey, respondents were grouped by age. In the 20-29 age group, the heights were normally distributed, with a mean of 69.6 inches and a standard deviation of 3 inches. A study participant is randomly selected. a. Find the probability that his height is less than 66 inches. b. Find the probability that his height is between 66 and 72 inches. c. Find the probability that his height is more than 72 inches.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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#11 abc
Transcribed Image Text:11. A survey was conduced to measure the height of U.S. men. In the survey,
respondents were grouped by age. In the 20-29 age group, the heights were normally
distributed, with a mean of 69.6 inches and a standard deviation of 3 inches. A study
participant is randomly selected.
a. Find the probability that his height is less than 66 inches.
b. Find the probability that his height is between 66 and 72 inches.
c. Find the probability that his height is more than 72 inches.
For problems 12-14, find the z-score that corresponds to the given area.
12. .7580
13. .2090
14. .9916
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