On the probability that two independent distributions of frequency are really samples from the same parent population.
成果类型：
Article
署名作者：
Pearson, K
刊物名称：
BIOMETRIKA
ISSN/ISSBN：
0006-3444
发表日期：
1932
页码：
457470
关键词：
摘要：
In using the x 2 test to determine whether 2 samples are likely to have been drawn from the same unspecified parent population, the most likely parent population gives.[image].where N and N'' are the sizes and ns and n''s are the frequencies in the sth category of the 2 samples. In dealing with more than 2 samples it is best to compare them pair by pair rather than treat them as a contingency table.