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1. How many in the sample would have IQ scores not higher than 130? 1. 2. How many in the sample would have IQ scores of at least 103? 2. 3. What is the average IQ of the class having the highest frequency? 3.

1. How many in the sample would have IQ scores not higher than 130? 1. 2. How many in the sample would have IQ scores of at least 103? 2. 3. What is the average IQ of the class having the highest frequency? 3.

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
Section10.3: Measures Of Spread
Problem 1GP
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Table A: Summary of IQ Scores for a Sample for Students Who Are Entering First Year College RF CLASSES F CM TCB <CF >CF <RCF (%) >RCF (%) (%) 96 - 102 7 99 95.5 - 102.5 17.5 7 40 17.5 100.0 103 - 109 106 102.5 - 109.5 12.5 12 33 30 82.5 110 - 116 11 113 109.5 - 116.5 27.5 23 28 57.5 70.0 117 - 123 8 120 116.5 - 123.5 20.0 31 17 77.5 42.5 124 - 130 127 123.5 - 130.5 12.5 36 9. 90.0 22.5 131 - 137 4 134 130.5 - 137.5 10.0 40 4 100.0 10.0 1. How many in the sample would have IQ scores not higher than 130? 1. 2. How many in the sample would have IQ scores of at least 103? 2. 3. What is the average IQ of the class having the highest frequency? 3. 4. What percent of the sample has an average IQ score of 127? (Use 2 decimals) 4., 5. What percent of the sample has an IQ score less than 123.5? (Use 2 decimals) 5. 6. If the population size is 1000, how many would have an average IQ score of 106? (Round up to a whole number) 6. 7. If the population size is 1000, how many would have an IQ score not lower than 110? (Round up to a whole number) 7.
Transcribed Image Text:Table A: Summary of IQ Scores for a Sample for Students Who Are Entering First Year College RF CLASSES F CM TCB <CF >CF <RCF (%) >RCF (%) (%) 96 - 102 7 99 95.5 - 102.5 17.5 7 40 17.5 100.0 103 - 109 106 102.5 - 109.5 12.5 12 33 30 82.5 110 - 116 11 113 109.5 - 116.5 27.5 23 28 57.5 70.0 117 - 123 8 120 116.5 - 123.5 20.0 31 17 77.5 42.5 124 - 130 127 123.5 - 130.5 12.5 36 9. 90.0 22.5 131 - 137 4 134 130.5 - 137.5 10.0 40 4 100.0 10.0 1. How many in the sample would have IQ scores not higher than 130? 1. 2. How many in the sample would have IQ scores of at least 103? 2. 3. What is the average IQ of the class having the highest frequency? 3. 4. What percent of the sample has an average IQ score of 127? (Use 2 decimals) 4., 5. What percent of the sample has an IQ score less than 123.5? (Use 2 decimals) 5. 6. If the population size is 1000, how many would have an average IQ score of 106? (Round up to a whole number) 6. 7. If the population size is 1000, how many would have an IQ score not lower than 110? (Round up to a whole number) 7.
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