Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 3 - Section 3.3 - Assess Your Understanding - Applying the Concepts - Page 163: 12

Answer

$3.38~dollars~per~pound$

Work Step by Step

$x̅_w=\frac{Σw_ix_i}{Σw_i}=\frac{2.5\times1.30+4\times4.50+2\times3.75}{2.5+4+2}=\frac{26.75}{8.5}=3.38$
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