Answer
Weighted mean =$1.4341$ (millions)
Work Step by Step
Use the weighted mean formula.
Weighted mean =$ ((1.6\times 1.4) + ( 0.8 \times0.8) + ( 0.4 \times0.3) + ( 1.8\times 1.6))/(1.4 + 0.8 + 0.3 + 1.6)
= 1.4341$
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 3 - Data Description - Review Exercises - Section 3-1 - Page 178: 5
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