Introductory Statistics 9th Edition

Published by Wiley
ISBN 10: 1-11905-571-7
ISBN 13: 978-1-11905-571-6

Chapter 3 - Section 3.1 - Measures of Center for Ungrouped Data - Exercises - Page 89: 3.21

Answer

39.9375 dollar.

Work Step by Step

Weighted mean(dollar) = [ (1200x30)+(1900x45)+(1400x40)+(2200x35)+1300+50) ]/ 8000 = 39.9375
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