Other Sampling Methods

Question 160475 • VA-Probability and Statistics

Which best describes the process of selecting a cluster sample?

Answer

Clusters that each represent the population are sampled from such that no two members of the same cluster are included in the sample.

Members of a population are organized in clusters, each of which is representative of the population, and then whole clusters are randomly selected to make up the sample.

Members of a population are ordered by some characteristic, and then a cluster sample is formed by selecting every kth member.

Members of a population are separated into clusters based on a characteristic important to the study and a random sample is selected from each cluster.

Explanation

In cluster sampling, the population is divided into groups, or clusters, and entire clusters are randomly chosen for the sample. Choice B describes selecting whole clusters. Choice D instead describes stratified sampling, where individuals are randomly selected from every group.

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