Stratified sampling may be used when
A)subgroups that are representative of the whole population can be identified.
B)natural subgroups are more homogeneous than the population they come from.
C)an expert is available to identify a representative population.
D)the sample is very small.
E)none of the above.

Question

Quizplus · Accepted Answer

Stratified sampling is used when natural subgroups (strata) are more homogeneous than the overall population, allowing for more precise estimates by sampling within each subgroup.

Stratified Sampling May Be Used When