Stratified Sampling

Definition

Stratified sampling is a sampling method where the population is divided into distinct subgroups (strata) based on certain characteristics. Then, random samples are taken from each stratum proportionally to its size.

Related terms

Simple Random Sampling: A sampling method where every member of the population has an equal chance of being selected.

Systematic Sampling: Selecting every nth individual from a list after randomly selecting a starting point.

Cluster Sampling: Dividing the population into clusters and randomly selecting entire clusters for inclusion in the sample.