Answer
$33$
Work Step by Step
$S=\displaystyle \sum x$ = sum of all the data items.
$\begin{aligned}S&=3+8+4+5+3+4+6\\&=33\end{aligned}$
Statistics (12th Edition)
by McClave, James T.; Sincich, Terry T.
Published by
Pearson
ISBN 10:
0321755936
ISBN 13:
978-0-32175-593-3
Chapter 2 - Methods for Describing Sets of Data - Exercises 2.44 - 2.47 - Learning the Mechanics - Page 50: 2.45a
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