Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 10 - Correlation and Regression - 10-4 Prediction Intervals and Variation - Basic Skills and Concepts - Page 537: 7

Answer

0.628849

Work Step by Step

Coefficient of determination$=r^2=(-0.793)^2=0.628849.$ Hence 0.628849 of the sample's variation is explained by the regression line.
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