Elementary Statistics (12th Edition)

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

Chapter 2 - Summarizing and Graphing Data - 2-2 Frequency Distributions - Basic Skills and Concepts - Page 52: 9


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The lower class boundary is the lower class limit minus 0.05, the upper class boundary is the upper class limit plus 0.05. The class width is the average of the lower and upper class limits. The class width is the difference between the upper class boundary and the lower class boundary.
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