A probability sample constructed so that randomly selected subsamples of different groups are represented in the total sample is known as a(n)_____ sample.

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Stratified sampling involves dividing the population into subgroups based on certain characteristics (such as age, gender, income, etc.) and then randomly selecting samples from each subgroup. This ensures that the sample includes representation from all subgroups, which can provide more accurate information about the overall population. Convenience sampling (B) involves sampling individuals who are conveniently available, which may not be representative of the population. Exclusive sampling (C) and quota sampling (D) are not commonly used sampling techniques.

A Probability Sample Constructed So That Randomly Selected Subsamples of Different