distribution-free method

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distribution-free method

[‚dis·trə′byü·shən ‚frē ‚meth·əd]
(statistics)
Any method of inference that does not depend on the characteristics of the population from which the samples are obtained.
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All of the measures of correlation with the standard instability index are positive, and the two non-parametric statistics show significance at confidence levels around 90 percent.
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