If the goal of a research study is to describe and compare different subgroups in a known population,the best strategy is to use stratified random sampling.

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Stratified random sampling is a technique used to ensure representation of different subgroups in a known population. By dividing the population into strata (subgroups) and then randomly sampling from each stratum, researchers can ensure that the sample is representative of each subgroup and can accurately describe and compare them. Therefore, stratified random sampling is the best strategy for achieving the goal of describing and comparing different subgroups in a population.

If the Goal of a Research Study Is to Describe