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单词 Order statistic
释义

Order statistic

英语百科

Order statistic

Probability density functions of the order statistics for a sample of size n = 5 from an exponential distribution with unit scale parameter.

In statistics, the kth order statistic of a statistical sample is equal to its kth-smallest value. Together with rank statistics, order statistics are among the most fundamental tools in non-parametric statistics and inference.

Important special cases of the order statistics are the minimum and maximum value of a sample, and (with some qualifications discussed below) the sample median and other sample quantiles.

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