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Relevant and up-to-date teaching resources are being moved to Tāhūrangi (tahurangi.education.govt.nz).
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A method of sampling in which the population is split into naturally forming groups (the clusters), with the groups having similar characteristics that are known for the whole population. A simple random sample of clusters is selected. Either the individuals in these clusters form the sample or simple random samples chosen from each selected cluster form the sample.
Example
Consider obtaining a sample of secondary school students from Wellington. The secondary schools in Wellington are suitable clusters. A simple random sample of these schools is selected. Either all students from the selected schools form the sample or simple random samples chosen from each selected school form the sample.
Curriculum achievement objectives references
Statistical investigation: Levels (7), (8)
