Given a normal distribution with u = 100 and o = 10, complete parts (a) through (d). %3D Click here to view page 1 of the cumulative standardized normal distribution table. Click here to view page 2 of the cumulative standardized normal distribution table. a. What is the probability that X> 80? The probability that X> 80 is 0.9772. (Round to four decimal places as needed.) b. What is the probability that X< 90? The probability that X<90 is (Round to four decimal places as needed.)

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Please help with part b. Thanks.
Given a normal distribution with u = 100 and o = 10, complete parts (a) through (d).
%3!
Click here to view page 1 of the cumulative standardized normal distribution table.
Click here to view page 2 of the cumulative standardized normal distribution table.
a. What is the probability that X> 80?
The probability that X> 80 is 0.9772.
(Round to four decimal places as needed.)
b. What is the probability that X< 90?
The probability that X< 90 is
(Round to four decimal places as needed.)
Transcribed Image Text:Given a normal distribution with u = 100 and o = 10, complete parts (a) through (d). %3! Click here to view page 1 of the cumulative standardized normal distribution table. Click here to view page 2 of the cumulative standardized normal distribution table. a. What is the probability that X> 80? The probability that X> 80 is 0.9772. (Round to four decimal places as needed.) b. What is the probability that X< 90? The probability that X< 90 is (Round to four decimal places as needed.)
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