Answer
The mean is 28.5.
Work Step by Step
Find the mean by totaling all the values and dividing by the total number of values.
$(18+12+15+24+9+42+54+87+21+3)\div10\longrightarrow$ Sum all the values.
=$285\div10$
=$28.5$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 10 - Statistics - Review Exercises - Page 749: 25
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