Twenty pairs of measurements were taken at random to estimate the relation between variables X and Y. A least-squares line was fitted to the collected data. The resulting residual plot is shown. 600 400 Residuals 200 0 -200 -400 -600 Өт 50 100 150 $200 X Which of the following conclusions is appropriate? ○ A line is an appropriate model to describe the relation between X and Y. ○ A line is not an appropriate model to describe the relation between X and Y. O The assumption of the Law of Averages has been violated. O The variables X and Y are not related at all. O There is not enough information about the variables X and Y to form a conclusion.
Twenty pairs of measurements were taken at random to estimate the relation between variables X and Y. A least-squares line was fitted to the collected data. The resulting residual plot is shown. 600 400 Residuals 200 0 -200 -400 -600 Өт 50 100 150 $200 X Which of the following conclusions is appropriate? ○ A line is an appropriate model to describe the relation between X and Y. ○ A line is not an appropriate model to describe the relation between X and Y. O The assumption of the Law of Averages has been violated. O The variables X and Y are not related at all. O There is not enough information about the variables X and Y to form a conclusion.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
Problem 76E
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