In other words, the sample mean is a random variable. As such, it has a distribution. That is also the case for the sample proportion and many other statistics. Population distribution gives ...

There are programs for sampling distributions of sample means, difference between sample means, sample proportions, and sample correlations.

The Central Limit Theorem is useful when analyzing large data sets because it assumes that the sampling distribution of the mean will be normally distributed and typically form a bell curve.

(5) The overall spatial distribution of spider mites is predicted from an observed proportion of empty sampling units. This presupposes, however, that the negative binomial is a general model of the ...