| 释义 |
cluster sampling
noun[ U ]
uk /ˈklʌs.tə ˌsɑːm.pəl.ɪŋ/ us /ˈklʌs.tɚ ˌsæm.plɪŋ/
the process of taking samples(= people or things that are chosen out of a larger number and asked questions or tested) from just a few small groups rather than from the widest possible range:
This study uses a cluster sampling approach.
Cluster sampling is often used because it relatively cheap to do.
Cluster sampling was used to select the individuals for this research.
The figures were produced from a cluster sampling of 4,000 people.
The survey used a cluster sampling design to obtain a representative sample of the population.
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Samples and examples
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