13th Edition
Publisher: CENGAGE L
ISBN: 9781305881884


13th Edition
Publisher: CENGAGE L
ISBN: 9781305881884


Chapter 3.1, Problem 3E
Textbook Problem

Consider the following data and corresponding weights.

xi Weight (wi)
3.2 6
2.0 3
2.5 2
5.0 8
  1. a. Compute the weighted mean.
  2. b. Compute the sample mean of the four data values without weighting. Note the difference in the results provided by the two computations.

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