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weighted mean

noun, Statistics.
1.
a mean that is computed with extra weight given to one or more elements of the sample.
Also called weighted average.
Origin
1835-1845
1835-45
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for weighted average

weighted average

noun
1.
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Contemporary definitions for weighted average
noun

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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