Statistics and Data Analysis Vocabulary

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population

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the entire group from which information is collected

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sample

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a smaller group selected from a larger group

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mean

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the average of the data set

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median

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the exact middle of the data distribution

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mode

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the most frequently occurring data value

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data

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a collection of information gathered by observations, measurements, research, or analysis; can include facts, numbers, names, figures, etc.

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center

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the part of the data set where the middle values are concentrated

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data distribution

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how data values are arranged

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statistics (as a subject)

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the area of math that deals with collecting, organizing, analyzing, interpreting, and presenting data

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statistic

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a specific number that summarizes a set of data: for instance, an average or a percent