Stratified sample and Sample distribution

Stratified sample noun - The population is divided into strata and a random sample is taken from each stratum.

Sample distribution and stratified sample are semantically related. In some cases you can use "Sample distribution" instead a noun phrase "Stratified sample".

Sample distribution noun - Items selected at random from a population and used to test hypotheses about the population.

Stratified sample and sample distribution are semantically related. Sometimes you can replace phrase "Stratified sample" with "Sample distribution", this phrases are similar.