A national consumer magazine reported the following correlations. The correlation between car weight and car reliability is -0.6. The correlation between car weight and annual maintenance cost is 0.4. According to this information, which of the following statements are true? I. Heavier cars tend to be less reliable.  II. Heavier cars tend to cost more to maintain.  III. Car weight is related more strongly to reliability than to maintenance cost. I only II only III only I and II I, II, and III

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 12PPS
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A national consumer magazine reported the following correlations.

  • The correlation between car weight and car reliability is -0.6.
  • The correlation between car weight and annual maintenance cost is 0.4.

According to this information, which of the following statements are true?

I. Heavier cars tend to be less reliable. 
II. Heavier cars tend to cost more to maintain. 
III. Car weight is related more strongly to reliability than to maintenance cost.

  • I only
  • II only
  • III only
  • I and II
  • I, II, and III
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