d help with A,B,and C

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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Need help with A,B,and C

1.) The scores on a college placement test are normally distributed with mean 500 and standard deviation 65.
a.) What percentage of people taking this exam will have scores higher than 390?
b.) What percentage of the people taking this test will have scores between 450 and 485?
c.) What percentage of the people taking this test will have scores between 425 and 530?
Transcribed Image Text:1.) The scores on a college placement test are normally distributed with mean 500 and standard deviation 65. a.) What percentage of people taking this exam will have scores higher than 390? b.) What percentage of the people taking this test will have scores between 450 and 485? c.) What percentage of the people taking this test will have scores between 425 and 530?
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