Click here to view page Click here to view page 2 of the cumulative standardized normal distribution table. www. 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<75? The probability that X <75 is 0.0062. (Round to four decimal places as needed.) c. What is the probability that X < 85 or X> 130? The probability that X<85 or X> 130 is 0.0681. (Round to four decimal places as needed.) d. 90% of the values are between what two X-values (symmetrically distributed around the mean)? 90% of the values are greater than and less than (Round to two decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Given a normal distribution with μ = 100 and o= 10, complete parts (a) through (d).
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.
J
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<75?
The probability that X <75 is 0.0062.
(Round to four decimal places as needed.)
c. What is the probability that X < 85 or X> 130?
The probability that X<85 or X> 130 is 0.0681.
(Round to four decimal places as needed.)
d. 90% of the values are between what two X-values (symmetrically distributed around the mean)?
90% of the values are greater than and less than
(Round to two decimal places as needed.)
Transcribed Image Text:Given a normal distribution with μ = 100 and o= 10, complete parts (a) through (d). 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. J 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<75? The probability that X <75 is 0.0062. (Round to four decimal places as needed.) c. What is the probability that X < 85 or X> 130? The probability that X<85 or X> 130 is 0.0681. (Round to four decimal places as needed.) d. 90% of the values are between what two X-values (symmetrically distributed around the mean)? 90% of the values are greater than and less than (Round to two decimal places as needed.)
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