Weighted Average

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Weighted Average

An average in which some values count for more than others. For example, if an index consisting of 10 stocks is weighted for price, this means that the average price of the stocks will move more when the stocks with higher price move. Most indices use weighted averages so that "smaller" values do not affect the index inordinately. This helps correct for the fact that averages tend to be affected by extreme values. One of the most common ways of weighting an average is to weight for market capitalization.
References in periodicals archive ?
As with the previous case, to investigate systematic differences across company size we may split the sample into large-large and large-medium companies or we may compute a weighted mean and compare it with the standard mean.
The solid lines are the weighted mean while the dashed lines are the standard mean.
Conditions (i), (iv), and (v) of Theorem 1 are automatically satisfied for any weighted mean method.
A weighted mean matrix automatically satisfies conditions (i)-(iii) of Theorem 1.
However, each weighted mean effect size had a corresponding confidence interval that contained zero.
n], the true standard deviation of the sampling distribution of the weighted mean [x.
A popular estimate for the parameter Y of model (2) is the weighted mean (7) [x.
A weighted mean of 94% of patients showed improved tilt tolerance with a nonselective [beta]-blocker, compared with 68% with a [beta]-1 selective agent, Dr.
DataMedica provides quarterly detailed reports of expected and actual costs for each provider, based on a weighted mean measure called the Physician Performance Index.
Normalised data with weighted means based on customer,organization resource and competition indices showed in table 1, 2 and 3, respectively.
Table 1: Normalised data with weighted means based on customer index.
This year's measurement was made across three factors: a Weighted Means test, which measures the median download time of a 10 KB file; a Variability test, which measures the backbone's performance under stress; and a T-1 pricing analysis.

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