Which of the Following Statements Is True About a Cluster

Multiple Choice

Which of the following statements is true about a cluster sampling plan?

A) Members of a cluster are likely to respond the same, which leads to results with lower variability.
B) With cluster sampling, objects from the population are sampled at regular intervals.
C) A cluster sampling plan is often used for exit polls and quality control studies.
D) Cluster sampling can make it easier to access very large populations.