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Median

A mathematical measure of the centrality of a data set. If the data set is arranged in the order of the values, the median is the value of the central data point for an odd number of data, or the mean of the two central data points for an even number of data. The median is often used in place of the mean or average when there are a number of extreme data values or the distribution of data is skewed.

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Related terms

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Pollution control; Air pollution

The middle value in a population distribution, above and below which lie an equal number of individual values; midpoint.

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One of several measures of central tendency. 1) Pertaining to a series of numbers, the median is the middle term when the numbers are arranged in algebraic order. If the number of ...

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A statistical measure of central tendency. The middle-most value in a set of observations with an equal number of observations lying above and below the median value.

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The score in a distribution above and below which lie 50 percent of the other scores; a measure of central tendency.

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