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Statistical Spread (Dispersion)

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PPGPortal > Home > Concept Dictionary > S > Statistical Spread (Dispersion)
 
Statistical Spread (Dispersion)

Describes how much the observations vary around the central tendency.

(Frazer, Garth. Class Lecture. PPG 1004 Quantitative Methods for Policy Analysis. University of Toronto School of Public Policy and Governance. 2008.)

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Common measures of statistical dispersion or spread include the standard deviation, range, interquartile range, and variance. The measure of statistical spread will be a positive real number and increases as observations become increasingly diverse.
     
Statistical Spread (Dispersion)

Describes how much the observations vary around the central tendency.

(Frazer, Garth. Class Lecture. PPG 1004 Quantitative Methods for Policy Analysis. University of Toronto School of Public Policy and Governance. 2008.)

---------------------------------

Common measures of statistical dispersion or spread include the standard deviation, range, interquartile range, and variance. The measure of statistical spread will be a positive real number and increases as observations become increasingly diverse.

Approved for glossaryposting by Ben Eisen on January 14, 2011


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