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A particular IQ test is standardized to a Normal model, with a mean of 100 and a standard deviation of 18. a) Choose the model for these IQ scores that correctly shows what the 68-95-99.7 rule predicts about the scores. A. O B. C. 68% ,99 7%. 68% 95% 99.7% 82 100 118 136 154 95% 94% 997% H- 20 A+ 20 +30 H- 20 u+ 20 H- 20 +20 + 30 68% 64 82 100 118 136 154 H-30 H-30 NI+ 30 46 64 46 64 82 100 118 136 154 172 b) In what interval would you expect the central 68% of the IQ scores to be found? Using the 68-95-99.7 rule, the central 68% of the IQ scores are between 82 and 118. (Type integers or decimals. Do not round.) c) About what percent of people should have IQ scores above 136? Using the 68-95-99.7 rule, about 4.7 % of people should have IQ scores above 136. (Type an integer or a decimal. Do not round.)

A particular IQ test is standardized to a Normal model, with a mean of 100 and a standard deviation of 18. a) Choose the model for these IQ scores that correctly shows what the 68-95-99.7 rule predicts about the scores. A. O B. C. 68% ,99 7%. 68% 95% 99.7% 82 100 118 136 154 95% 94% 997% H- 20 A+ 20 +30 H- 20 u+ 20 H- 20 +20 + 30 68% 64 82 100 118 136 154 H-30 H-30 NI+ 30 46 64 46 64 82 100 118 136 154 172 b) In what interval would you expect the central 68% of the IQ scores to be found? Using the 68-95-99.7 rule, the central 68% of the IQ scores are between 82 and 118. (Type integers or decimals. Do not round.) c) About what percent of people should have IQ scores above 136? Using the 68-95-99.7 rule, about 4.7 % of people should have IQ scores above 136. (Type an integer or a decimal. Do not round.)

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 14PPS
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A particular IQ test is standardized to a Normal model, with a mean of 100 and a standard deviation of 18. a) Choose the model for these IQ scores that correctly shows what the 68-95-99.7 rule predicts about the scores. В. C. u +o u + o 68% .99.7%. 68% H- 204 95% 95% 95% u + 20 H- 204 + 20 H- 204 + 20 H- 30 99.7% H + 30 H- 30 68% H+ 30 H- 30 99.7% H+ 30 46 64 82 100 118 136 154 46 64 82 100 118 136 154 64 82 100 118 136 154 172 b) In what interval would you expect the central 68% of the IQ scores to be found? Using the 68-95-99.7 rule, the central 68% of the IQ scores are between 82 and 118 . (Type integers or decimals. Do not round.) c) About what percent of people should have IQ scores above 136? Using the 68-95-99.7 rule, about 4.7 % of people should have IQ scores above 136. (Type an integer or a decimal. Do not round.)
Transcribed Image Text:A particular IQ test is standardized to a Normal model, with a mean of 100 and a standard deviation of 18. a) Choose the model for these IQ scores that correctly shows what the 68-95-99.7 rule predicts about the scores. В. C. u +o u + o 68% .99.7%. 68% H- 204 95% 95% 95% u + 20 H- 204 + 20 H- 204 + 20 H- 30 99.7% H + 30 H- 30 68% H+ 30 H- 30 99.7% H+ 30 46 64 82 100 118 136 154 46 64 82 100 118 136 154 64 82 100 118 136 154 172 b) In what interval would you expect the central 68% of the IQ scores to be found? Using the 68-95-99.7 rule, the central 68% of the IQ scores are between 82 and 118 . (Type integers or decimals. Do not round.) c) About what percent of people should have IQ scores above 136? Using the 68-95-99.7 rule, about 4.7 % of people should have IQ scores above 136. (Type an integer or a decimal. Do not round.)
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