Kendall's τ is equal to the correlation coefficient for the BVE distribution

Autor: Michael D. deB. Edwardes
Rok vydání: 1993
Předmět:
Zdroj: Statistics & Probability Letters. 17:415-419
ISSN: 0167-7152
DOI: 10.1016/0167-7152(93)90264-j
Popis: For the BVE (BiVariate Exponential) distribution, defined and explained by Marshall and Olkin (1967), the population Kendall's τ (1948), which is the probability of concordance minus the probability of discordance for a bivariate distribution, is shown to be equal to the population correlation coefficient. Moreover, Kendall's t statistic is superior to Pearson's r for estimating the BVE correlation. Some other bivariate distributions, due to Gumbel, Morgenstern and Freund, are also considered.
Databáze: OpenAIRE