Answer
$Weighted~mean=3.33$
Work Step by Step
$Weighted~mean=x̅_w=\frac{Σw_ix_i}{Σw_i}=\frac{5\times4+4\times3+3\times4+3\times2}{5+4+3+3}=3.33$
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 3 - Review - Review Exercises - Page 184: 7
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