Elementary Statistics (12th Edition)

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

Chapter 10 - Correlation and Regression - 10-3 Regression - Basic Skills and Concepts: 3

Answer

See below.

Work Step by Step

The slope of the regression line has the same sign as r (linear regression coefficient). Hence if r is positive, the regression line is increasing, but if r is negative, the regression line is decreasing.
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