MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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18) 

A variable is normally distributed with mean 16 and standard deviation 2.

a. Determine the quartiles of the variable.

b. Obtain and interpret the 80th percentile.

c. Find the value that 65% of all possible values of the variable exceed.

d. Find the two values that divide the area under the corresponding normal curve into a middle area of 0.95 and two outside areas of 0.025. Interpret the answer.
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Transcribed Image Text:A variable is normally distributed with mean 16 and standard deviation 2. a. Determine the quartiles of the variable. b. Obtain and interpret the 80th percentile. c. Find the value that 65% of all possible values of the variable exceed. d. Find the two values that divide the area under the corresponding normal curve into a middle area of 0.95 and two outside areas of 0.025. Interpret the answer.
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