Is a following probabilities by standardizing: a. P(X ≤ 100) b. P(X> 90) c. P(90 < X < 100) d. P(|X-80| ≤ 20) will can ou and standard tion ro, compute the

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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ONLY PART D

If X is a normal random variable with mean 80 and standard deviation 10, compute the
following probabilities by standardizing:
a. P(X ≤ 100)
b. P(X>90)
c. P(90 < X ≤ 100)
d. P(|X-80 ≤ 20)
Transcribed Image Text:If X is a normal random variable with mean 80 and standard deviation 10, compute the following probabilities by standardizing: a. P(X ≤ 100) b. P(X>90) c. P(90 < X ≤ 100) d. P(|X-80 ≤ 20)
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