A simple random sample is a subset of a statistical population where each member of the population is equally likely to be chosen.

As an estimator of the population mean, the sample mean based only on the distinct units possesses a remarkable invariance property. Under three forms of simple random sampling, viz. simple random ...

This example illustrates the use of regression analysis in a simple random cluster sampling design. The data are from S rndal, Swenson, and Wretman (1992, p. 652). A total of 284 Swedish ...

Random sampling using quadrats Sampling of the area you are studying must be random. It must show no bias – for instance, choosing to sample where there are lots of plants.