# weighted mean

- a mean that is computed with extra weight given to one or more elements of the sample.

## Origin of weighted mean^{}

First recorded in 1835–45

Also called weighted average.

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

# weighted average

- an average calculated by taking into account not only the frequencies of the values of a variable but also some other factor such as their variance. The weighted average of observed data is the result of dividing the sum of the products of each observed value, the number of times it occurs, and this other factor by the total number of observations

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