subsample

v. take a small specimen from a larger sample; reduce the resolution of a digital image by using an algorithm (Computers)

Sampling is that part of statistical practice concerned with the selection of individual observations intended to yield some knowledge about a population of concern, especially for the purposes of statistical inference. Each observation measures one or more properties (weight, location, etc.) of an observable entity enumerated to distinguish objects or individuals. Results from probability theory and statistical theory are employed to guide practice.
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subsample
(thống kê) mẫu con
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SOTTOCAMPIONE. SOTTOCAMPIONARE