The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 4 - Scatterplots and Correlation - Chapter 4 Exercises - Page 124: 4.42a

Answer

r = 1.0 for two points with positive slope, and r = -1 for two points with negative slope. r has this value because two points will always be connected by a straight line with minimum distance.

Work Step by Step

Make two points in the graph area and observe the value of r.
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