Statistics and Probability Dictionary
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Cluster sampling refers
to a sampling method that has the following properties.
The population is divided into N groups, called clusters.
The researcher randomly selects n
clusters to include in the sample.
The number of observations within each cluster
- The total number of observations M = M1 + M2 + M3 + ... + MN-1 +
Each element of the population can be assigned to one, and only one, cluster.