Samples and populations, estimates and parameters
The words sample and population have different and more restricted meanings in statistics and in biometry than in common everyday language. In statistics, a population (also called a universe)is a set of beings (or the set of qualitative or quantitative observations which can be made on those beings) about which information is desired and which is studied through a subset, called a sample, drawn from it at random, that is in as impartial (unbiased) a manner as possible.
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