Meaning of DISTRIBUTION FREE STATISTIC

WordNet Dictionary
	Definition:		[n]  a statistic computed without knowledge of the parameters of the distribution from which observations are drawn
	Synonyms:		nonparametric statistic
	See Also:		fourfold point correlation, Kendall test, phi coefficient, phi correlation, rank-difference correlation, rank-difference correlation coefficient, rank-order correlation, rank-order correlation coefficient, statistic