Answer
15.5
Work Step by Step
$mean=\frac{sum\ of\ measurements}{count\ of\ measurements}$
$mean=\frac{2.7+8.1+9.3+7.2+10.6+11.4+12.9+13.5+16.1+10.9+12.7+15.9+20.7+21.9+30.6+42.9}{16}=\frac{247.4}{16}=15.5$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 15 - Section 15.5 - Mean Measurement - Exercise - Page 515: 2
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