Subgroups are often referred to as ______.
A) population entities
B) sample entities
C) secondary groups
D) strata

Question

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Subgroups are often referred to as strata. A stratum is a group that has been created based on specific characteristics or criteria, such as age, gender, income, education level, or geographic location. Subgroups or strata are often used in research and sampling to ensure that the sample is representative of the larger population in terms of these characteristics.

Subgroups Are Often Referred to as ______