representative sampling vs proportional sampling

representative sampling and proportional sampling both are nouns.

Word	Noun	Adjective	Verb	Adverb
representative sampling	Yes	No	No	No
proportional sampling	Yes	No	No	No

As nouns, representative sampling and proportional sampling are synonyms defined as:

representative sampling and proportional sampling: the population is divided into subpopulations (strata) and random samples are taken of each stratum

Other synonyms of representative sampling include stratified sampling.

representative sampling (noun)	proportional sampling (noun)
the population is divided into subpopulations (strata) and random samples are taken of each stratum	the population is divided into subpopulations (strata) and random samples are taken of each stratum