Area (cluster) sampling technique is used when [3177]

Q) Area (cluster) sampling technique is used when

A)population is scattered and large size of the sample is to be drawn
B) population is heterogeneous
C) long survey is needed
D) (a) and (C)


D) (a) and (C) | Explanation:When long survey is being done and population is being scattered over a large area then researcher selects various groups from the whole area. The selection of these groups is based on the discretion of the researcher.

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