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: 17

Answer

See below.

Work Step by Step

Angle belonging to jackhammers: $\frac{279}{1004}\cdot 360^{o}=100.03^o.$ Angle belonging to car alarms: $\frac{388}{1004}\cdot 360^{o}=139.12^o.$ Angle belonging to barking dogs: $\frac{128}{1004}\cdot 360^{o}=45.9^o.$ Angle belonging to crying babies: $\frac{209}{1004}\cdot 360^{o}=74.95^o.$
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