3. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a) If a person is selected at random, what is the probability that he or she has an IQ less than 100? b) What is the probability that a random person has an IQ greater than 120? c) The population of the U.S. is 325 million people. How many of them have an IQ greater than 120?
3. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a) If a person is selected at random, what is the probability that he or she has an IQ less than 100? b) What is the probability that a random person has an IQ greater than 120? c) The population of the U.S. is 325 million people. How many of them have an IQ greater than 120?
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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hello I need answers to 3a,3b,3c please and thank you!
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