where and are the first and third quartiles and is the interquartile range.
Quartile Variation Coefficient
See also
Interquartile Range, Quartile, Quartile DeviationExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Quartile Variation Coefficient." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/QuartileVariationCoefficient.html