Question: 3. Consider the following data and corresponding weights. xi Weight (wi ) 3.2 6 2.0 3 2.5 2 5.0 8 a. Compute the weighted mean.

3. Consider the following data and corresponding weights.

xi Weight (wi )
3.2 6 2.0 3 2.5 2 5.0 8

a. Compute the weighted mean.

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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