Therefore, a stratified sampling strategy will ensure that members from each subgroup are included in the data analysis. Simple random and stratified random samples are statistical measurement tools.

A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen and is meant to be an unbiased representation of a group.

The method of simple random sampling (METHOD=SRS) selects units with equal probability and without replacement. Each possible sample of n different units out of N has the same probability of being ...

In a simple random sample, each individual in the population has an equal probability of being chosen. Additionally, each sample of size n has an equal probability of being the chosen sample. This ...