What kind of probability sample is constructed so that randomly selected subsamples of different groups are represented in the total sample?
A) a stratified sample
B) a convenience sample
C) a quota sample
D) a cluster sample

Question

Quizplus · Accepted Answer

A stratified sample is constructed by dividing the population into subgroups (strata) based on certain characteristics, and then randomly selecting a proportionate number of individuals from each subgroup. This ensures that the different groups are represented in the sample, making it more representative of the population as a whole. Other sampling methods listed do not necessarily ensure representation of different groups.

What Kind of Probability Sample Is Constructed So That Randomly