Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 12 - Data Analysis and Probability - 12-2 Frequency and Histograms - Lesson Check - Page 723: 3

Answer

Battery life Frequency Cumulative Frequency 9-13 7 7 13-17 2 9 17-21 1 10 21-25 2 12

Work Step by Step

$12,9,10,14,10,11,10,18,21,10,14,22$ $9, 10, 10, 10, 10, 11, 12, 14, 14, 18, 21, 22$ The range is 9-22, so we can divide the data into 4 intervals. Battery life Frequency Cumulative Frequency 9-13 7 7 13-17 2 9 17-21 1 10 21-25 2 12
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