A stratified random sample is a statistical procedure that takes multiple random samplings from different subsets, or "strata", of the population. This is more complicated than a simple random ...

What Is a Simple Random Sample? 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. A simple random sample ...

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.

However, statistical methods allow for inferences about a population by analyzing the results of a smaller sample extracted from that population. Stratified random sampling is one way of doing this.

If no other sources are available to measure certain variables of a target population, Statistics Netherlands often uses a random sample, i.e. a sample of units from the population drawn in accordance ...