Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 2 - Section 2.2 - Assess Your Understanding - Applying the Concepts: 35a

Answer

Lower class limit for the first class: 100.0 Class width: 100.0

Work Step by Step

100.0 is slightly lower than 119.8, the smallest violent-crime rate observed in 2009. Largest violent-crime rate: 1345.9 Smallest violent-crime rate: 119.8 Number of classes: 13 $Class~width\approx\frac{1345.9-119.8}{13}\approx100.0$ Observe that all the given rates will be within a class. See the Guidelines on page 86.
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