Elementary Statistics (12th Edition)

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

Chapter 2 - Summarizing and Graphing Data - 2-4 Graphs That Enlighten and Graphs That Deceive - Basic Skills and Concepts - Page 71: 10

Answer

See below.

Work Step by Step

There is no trend that is always valid but the numbers seem to alternatively increase and decrease but when looking to the graph we can see that generally the numbers increased quite a lot until 2000 and then decreased slightly until 2009.
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