IQ is normally distributed with a mean of 100 and a standard deviation of 15. a) Suppose one individual is randomly chosen. Find the probability that this person has an IQ greater than 95. Write your answer in percent form. Round to the nearest tenth of a percent. P(IQ greater than 95) = b) Suppose one individual is randomly chosen. Find the probability that this person has an IQ less than 125. Write your answer in percent form. Round to the nearest tenth of a percent. P(IQ less than 125) = c) In a sample of 800 people, how many people would have an IQ less than 110? people

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 2GP
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IQ is normally distributed with a mean of 100 and a standard deviation of 15.
a) Suppose one individual is randomly chosen. Find the probability that this person has an IQ greater than
95.
Write your answer in percent form. Round to the nearest tenth of a percent.
P(IQ greater than 95)
b) Suppose one individual is randomly chosen. Find the probability that this person has an IQ less than
125.
Write your answer in percent form. Round to the nearest tenth of a percent.
P(IQ less than 125) =
c) In a sample of 800 people, how many people would have an IQ less than 110?
people
d) In a sample of 800 people, how many people would have an IQ greater than 140?
people
Transcribed Image Text:IQ is normally distributed with a mean of 100 and a standard deviation of 15. a) Suppose one individual is randomly chosen. Find the probability that this person has an IQ greater than 95. Write your answer in percent form. Round to the nearest tenth of a percent. P(IQ greater than 95) b) Suppose one individual is randomly chosen. Find the probability that this person has an IQ less than 125. Write your answer in percent form. Round to the nearest tenth of a percent. P(IQ less than 125) = c) In a sample of 800 people, how many people would have an IQ less than 110? people d) In a sample of 800 people, how many people would have an IQ greater than 140? people
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