RhilynnL74056 RhilynnL74056

03-11-2022
Mathematics

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Assume that the random variable X is normally distributed , with mean = 80 and standard deviation = 15. Compute the probability P(X > 92) .

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MckaleJ679532 MckaleJ679532

03-11-2022

Assume that the random variable X is normally distributed , with mean = 80 and standard deviation = 15. Compute the probability P(X > 92) .

step 1

Find z score

z=(92-80)/15

z=0.8

step 2

using the z-score table

For z=0.8

P=0.7881

therefore

answer is

P=0.7881

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