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5. IQ Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 15. a) Draw the model for these IQ scores. Clearly label it, showing what the 68-95-99.7 Rule predicts. b) In what interval would you expect the central 95% of IQ scores to be found? c) About what percent of people should have IQ scores above 115? d) About what percent of people should have IQ scores between 70 and 85? e) About what percent of people should have IQ scores above 130?

5. IQ Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 15. a) Draw the model for these IQ scores. Clearly label it, showing what the 68-95-99.7 Rule predicts. b) In what interval would you expect the central 95% of IQ scores to be found? c) About what percent of people should have IQ scores above 115? d) About what percent of people should have IQ scores between 70 and 85? e) About what percent of people should have IQ scores above 130?

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 26PFA
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I need help answering 26. (a-e)
in Exercise 17 rd deviation of will weigh at nder) that nds from all andard devia- a pound. Find ces for all the =rcise 18, recall th a standard speeding, c) About what percent of autos should get more d) About what percent of cars should get between 31 and 37.2 mpg? e) Describe the gas mileage of the worst 2.5% of all cars. 26. IQ Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 15. a) Draw the model for these IQ scores. Clearly label it, showing what the 68-95-99.7 Rule predicts. b) In what interval would you expect the central 95% of IQ scores to be found? c) About what percent of people should have IQ scores above 115? d) About what percent of people should have IQ scores between 70 and 85? e) About what percent of people should have IQ scores above 130? he pic here are th togra the 100 reads. Do Normal mode here? 20+ 15 32. Car spee # of cars 10 5 0.0 15.0 22.5 30.0 Speed (mph), O
Transcribed Image Text:in Exercise 17 rd deviation of will weigh at nder) that nds from all andard devia- a pound. Find ces for all the =rcise 18, recall th a standard speeding, c) About what percent of autos should get more d) About what percent of cars should get between 31 and 37.2 mpg? e) Describe the gas mileage of the worst 2.5% of all cars. 26. IQ Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 15. a) Draw the model for these IQ scores. Clearly label it, showing what the 68-95-99.7 Rule predicts. b) In what interval would you expect the central 95% of IQ scores to be found? c) About what percent of people should have IQ scores above 115? d) About what percent of people should have IQ scores between 70 and 85? e) About what percent of people should have IQ scores above 130? he pic here are th togra the 100 reads. Do Normal mode here? 20+ 15 32. Car spee # of cars 10 5 0.0 15.0 22.5 30.0 Speed (mph), O
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