Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff 

noun. 1. the entire amount of people in a rendered geographical location. 2. with regard to statistics, a theoretically defined, total group of items from which a sampling is taken in effort to attain empirical observations and to which outcomes can be generalized. Commonly referred to as universe.

POPULATION: "The population of the town is dense, and thus, far more numerous than we expected."

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