# When to Use Weighted Averages?

An average is a measure of the center of a data set. You calculate the average by adding together all the data points and dividing by the total number of data points. Each number counts equally in ... Read More »
http://www.ehow.com/info_8511475_use-weighted-averages.html

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## How to Calculate Time-Weighted Averages?

Time-weighted averages take into consideration not only the numerical levels of a particular variable, but also the amount of time spent on it. For instance, if workers are exposed to different dos... Read More »
http://www.ehow.com/how_8198651_calculate-timeweighted-averages.html

## How to Use Averages in Evaluations?

Averages based on several key areas are an efficient way to evaluate student progress in the classroom. By basing grades on at least three or four divisions of content, averages give a good overall... Read More »
http://www.ehow.com/how_8192162_use-averages-evaluations.html

## How to Use Averages in Math?

An average in math terms can be calculated in several different ways, based upon the data being analyzed. The three types of averages in math are the mean, the median and the mode. The mean is the ... Read More »
http://www.ehow.com/how_8397562_use-averages-math.html

## How to Calculate Averages in Math?

The average, also called the mean, represents the typical amount based on a range of data. For example, the average number of points you score a game represents what your typical scoring performanc... Read More »
http://www.ehow.com/how_8130736_calculate-averages-math.html

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