EBK MATHEMATICS FOR ELEMENTARY TEACHERS
5th Edition
ISBN: 9780134506609
Author: Beckmann
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Textbook Question
Chapter 15.3, Problem 12P
Discuss Jessica’s reasoning about calculating the mean of thedata displayed in the dot plot in Figure 15.20.
Figure 15.20 What is the mean of the data displayed in thisdot plot?
I took 2 dots from above the 8 and moved one to 6 and one to7. Then all the towers were leveled out and all were 4 tall, sothe mean is 4.
Is Jessica’s reasoning valid? If not, discuss how her ideacould be used to make a correct statement about the mean.
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Chapter 15 Solutions
EBK MATHEMATICS FOR ELEMENTARY TEACHERS
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