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The Stanford-Binet Intelligence Test is administered to determine a person's Intelligence Quotient (IQ). IQ scores calculated using this test are normally distributed with a mean of 100 and a standard deviation of 15. (a) If a student is chosen at random, calculate the probability that they will have an IQ over 110. Enter your answer as a decimal with 3 sig figs. (b) If a student is chosen at random, calculate the probability that they will have an IQ between 85 and 115.

The Stanford-Binet Intelligence Test is administered to determine a person's Intelligence Quotient (IQ). IQ scores calculated using this test are normally distributed with a mean of 100 and a standard deviation of 15. (a) If a student is chosen at random, calculate the probability that they will have an IQ over 110. Enter your answer as a decimal with 3 sig figs. (b) If a student is chosen at random, calculate the probability that they will have an IQ between 85 and 115.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 12PPS
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The Stanford-Binet Intelligence Test is administered to determine a person's Intelligence Quotient (IQ). IQ scores calculated using this test are normally distributed with a mean of 100 and a standard deviation of 15. (a) If a student is chosen at random, calculate the probability that they will have an IQ over 110. Enter your answer as a decimal with 3 sig figs. (b) If a student is chosen at random, calculate the probability that they will have an IQ between 85 and 115.
Transcribed Image Text:The Stanford-Binet Intelligence Test is administered to determine a person's Intelligence Quotient (IQ). IQ scores calculated using this test are normally distributed with a mean of 100 and a standard deviation of 15. (a) If a student is chosen at random, calculate the probability that they will have an IQ over 110. Enter your answer as a decimal with 3 sig figs. (b) If a student is chosen at random, calculate the probability that they will have an IQ between 85 and 115.
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