random sampling

noun

Statistics.

1. a method of selecting a sample random sample from a statistical population in such a way that every possible sample that could be selected has a predetermined probability of being selected.

Word History and Origins

Origin of random sampling¹

First recorded in 1895–1900

Example Sentences

For example, when studying age-related brain changes, including more participants at both younger and older age ranges produces more reliable findings than random sampling or concentrating on middle-aged participants.

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Pollsters usually attempt to obtain a representative sample through random sampling, where everyone has an equal chance of selection.

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If random sampling is possible, then correlation between individuals within clusters reduces the effective population size, which suggests biologists could collect fewer samples to predict disease prevalence.

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While my random sampling of stolen checks numbered just 20, the resulting confusion was enough to leave experts scratching their heads.

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“What we are seeing is more visits from AHCA, and they want to look at every patient file. They used to do a random sampling but now they want every single record,” Gallagher said.

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