The r-Distribution

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The -distribution with parameter is the distribution of the correlation coefficient of a random sample of size drawn from a bivariate normal distribution with . It can be used to construct tests about the correlation coefficient of bivariate normal data; that is, tests with null hypothesis . The mean of the distribution is always zero, and as the sample size grows, the distribution's mass concentrates more closely about this mean.

Contributed by: Chris Boucher (November 2018)
Open content licensed under CC BY-NC-SA



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