random sampling

American  

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.

---

Etymology

Origin of random sampling

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.

From Science Daily • Nov. 27, 2024

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

From New York Times • Apr. 13, 2024

“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.

From Seattle Times • Apr. 9, 2023

Background: When much of a population is suddenly wiped out by an earthquake or hurricane, the individuals that survive the event are usually a random sampling of the original group.

From Textbooks • Jun. 9, 2022

Nothing that doesn’t look like a random sampling from the Housewares Department of the Eaton’s Catalogue.

From "Cat's Eye" by Margaret Atwood