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.
Essentials of Statistics (5th Edition)
by Triola, Mario F.
Published by
Pearson
ISBN 10:
0-32192-459-2
ISBN 13:
978-0-32192-459-9
Chapter 10 - Correlation and Regression - 10-4 Rank Correlation - Page 524: 7
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