Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 3 - Data Description - Chapter Quiz - Page 182: 25

Answer

4.46

Work Step by Step

Use the formula for weighted average: weighted average=$\frac{8\times2+2\times6+3\times10}{8+2+3}=4.46$
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