Five students took an aptitude test prior to their algebra course.   What linear regression equation best predicts algebra performance, based on aptitude scores? If a student made an 80 on the aptitude test, what grade would we expect her to make in algebra? How well does the regression equation fit the data? Student aptitude test algebra grade 1 95 85 2 85 95 3 80 70 4 70 65 5 60 70

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 17HP
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  • Five students took an aptitude test prior to their algebra course.

 

  • What linear regression equation best predicts algebra performance, based on aptitude scores?
  • If a student made an 80 on the aptitude test, what grade would we expect her to make in algebra?
  • How well does the regression equation fit the data?

Student

aptitude test

algebra grade

1

95

85

2

85

95

3

80

70

4

70

65

5

60

70

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