weighted arithmetic mean
- noun
- Specialized
:
media aritmética ponderada
- To find the final grade, the instructor calculated the weighted arithmetic mean of all assignments.
Examples
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To find the weighted arithmetic mean, multiply each score by its weight.
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In portfolio management, expected returns are often determined using a weighted arithmetic mean.
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The scientist explained that a simple average is not always accurate, so a weighted arithmetic mean was applied.
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The weighted arithmetic mean provides a more accurate representation of the data.
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In portfolio management, expected returns are often determined using a weighted arithmetic mean.
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To find the final grade, the instructor calculated the weighted arithmetic mean of all assignments.
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The scientist explained that a simple average is not always accurate, so a weighted arithmetic mean was applied.
Synonyms
3
3.7
A number you get by giving some numbers more importance than others
An average that gives some numbers more importance using assigned values
Surface Forms
Morphology
weighted + arithmetic + mean
The phrase is compositionally transparent: 'weighted' indicates that items have different importance, 'arithmetic' signals a numerical calculation, and 'mean' denotes an average, so a learner who knows these words can infer an average computed with weights (sum of value×weight divided by total weights). This construction follows standard modifier+noun patterns and is cross-linguistically regular, making the overall meaning derivable for learners who know the constituents.
Etymology
The term weighted arithmetic mean creates a simple picture: imagine numbers on a balance where some are weighted more, so they count more. You use simple arithmetic by adding and dividing to find the mean, which is why this 'average' gives more importance to some values.