Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 4 - Section 4.1 - Assess Your Understanding - Applying the Concepts - Page 204: 36c

Answer

Outliers can be easily spotted in a scatter diagram as they are far away from most of the values. Due to the incorrect entry, r falls from 0.704 to 0.254; hence a noticeable decrease has occurred (because the correlation coefficient is not resistant to outliers).

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