Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 16 - Cumulative Review - Page 568: 19


The mean of the numbers $20.2,27.3,35.1,30.6,29.6\text{ and }22.6$ is $27.6$.

Work Step by Step

The sum of the numbers is, $20.2+27.3+35.1+30.6+29.6+22.6=165.4$ The mean of the $n$ numbers is, $\text{mean}=\frac{\text{Sum of }n\text{ numbers}}{n}$ $\begin{align} & \text{mean}=\frac{\text{165}\text{.4}}{6} \\ & =27.56 \\ & =27.6 \end{align}$ Hence, the mean of the numbers is $\text{mean}=27.6$
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