Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 2 - Section 2.3 - Assess Your Understanding - Applying the Concepts - Page 109: 23

Answer

The graph of the data about unprovoked shark attacks in the problem represents an upward trend between the years 1990s to 2000s.

Work Step by Step

The provided graph represents that the number of shark attacks increased in the following years. But the second graph of shark attack fatality rates shows just the reverse picture; that is, the fatality rate decreased in the following years. It also represents an apparent contradiction because if shark attacks increased,then fatality rate should also increase. This conclusion does not match with statistical records.
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