Editing Average absolute deviation (section)

{{Short description|Summary statistic of variability}}
The '''average absolute deviation''' ('''AAD''') of a data set is the [[average]] of the [[Absolute value|absolute]] [[Deviation (statistics)|deviations]] from a [[central tendency|central point]]. It is a [[summary statistics|summary statistic]] of [[statistical dispersion]] or variability. In the general form, the central point can be a [[arithmetic mean|mean]], [[median]], [[mode (statistics)|mode]], or the result of any other measure of central tendency or any reference value related to the given data set. 
AAD includes the '''mean absolute deviation''' and the ''[[median absolute deviation]]'' (both abbreviated as '''MAD''').