weighted average

weighted mean

noun Statistics.
a mean that is computed with extra weight given to one or more elements of the sample.
Also called weighted average.


Origin:
1835–45

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weighted average
 
n
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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Main Entry:  weighted average
Part of Speech:  n
Definition:  for a series of recorded observations, the sum of the products of the frequency of certain values and the value of the observation, divided by the total number of observations
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