Answer to Question #105678 in Statistics and Probability for suresh

Question

If the units within a group are heterogeneous, then the type of sample is

A> Stratified
B> Random
C> Cluster
D> None of the above

Answer 1

When mutually homogeneous but internally heterogeneous groupings are evident in a population, cluster sampling is used. The total population is divided into the groups (clusters) and a simple random sample of the groups is selected. Thus, the sampling method is cluster. (C)