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This is a preview. Log in through your library . Abstract The distribution of the sample correlation coefficient is derived when the population is a mixture of two bivariate normal distributions with ...

Central Limit Theorem: A sampling distribution of the mean is approximately normally distributed if the sample size is sufficiently large. This is true no matter what the population distribution is.

Complex sample designs, involving stratified and/or multistage sampling with sample weighting, along with frequency matching, are used to select controls or cases for case–control studies. Examples ...