Answer
-4
Work Step by Step
To find the average, sum the numbers then divide the sum by the count of the numbers.
$[(-18)+(-8)+(-1)+(-1)+0+4]\div6=[(-28)+4]\div6=[-24]\div6=-4$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Section 2.5 - Order of Operations - Exercise Set - Page 140: 80
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