Question

When a population is heterogeneous, it is divided into groups, so that there is homogeneity within the group and heterogeneity between the groups and some items are selected at random from each group. This is known as?
A. Cluster random sampling
B. Systematic random sampling
C. Quota sampling
D. Stratified random sampling

Answer 1

Hint: In this problem, we have to find the required answer to fill up the given question. We are given that, when a population is heterogeneous, it is divided into groups, so that there is homogeneity within the group and heterogeneity between the groups and some items are selected at random from each group, here we have to find the suitable term from the the given options, which satisfies the given statement.

Complete step by step answer:
We can now write the suitable term from the options, which is related to this question.
When a population is heterogeneous, it is divided into groups, so that there is homogeneity within the group and heterogeneity between the groups and some items are selected at random from each group, this is called cluster random sampling.
We should know that in statistics, cluster sampling method in which the entire population of the study is divided into externally homogenous, but internally heterogeneous and the groups are called clusters. Each cluster is a mini-representation of the entire population.

So, the correct answer is “Option A”.

Note: We should always remember the concept of cluster sampling, a method in which the entire population of the study is divided into externally homogenous, but internally heterogeneous and the groups are called clusters. Each cluster is a mini-representation of the entire population.