A sample chosen by stratified random sampling involves:
a. randomly selecting one of the first k elements in an ordered population, and then selecting every kth element in the population thereafter.
b. selecting a simple random sample of clusters from the available clusters in the population.
c. selecting a simple random sample from each of a given number of strata formed from the elements in the population.
d. a sample chosen by a knowledgeable person on the subject of the study.
Answer: c. selecting a simple random sample from each of a given number of strata formed from the elements in the population.
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