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A generalization of the Wilcoxon rank sum test.

A statistic defined to improve the Kolmogorov-Smirnov test in the tails.

A robust estimation based on linear combinations of order statistics. Examples include the statistical median and the trimean.

The statistical index P_L=(sump_nq_0)/(sump_0q_0), where p_n is the price per unit in period n and q_0 is the quantity produced in the initial period.

A discrete distribution of a random variable such that every possible value can be represented in the form a+bn, where a,b!=0 and n is an integer.

Given a function of the form y=a+blnx, (1) the coefficients can be found from least squares fitting as b = ...

Given a function of the form y=Ax^B, (1) least squares fitting gives the coefficients as b = ...

A method of displaying simple statistical parameters including hinges, the statistical median, and upper and lower values.

Random walk trajectories which are composed of self-similar jumps. They are described by the Lévy distribution.

L=sigma/(sigma_B), where sigma is the variance in a set of s Lexis trials and sigma_B is the variance assuming Bernoulli trials. If L<1, the trials are said to be subnormal, ...