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GCSE Statistics · key term
A sampling method in which the population is divided into strata and a random sample is selected from each, with sample numbers proportional to the stratum sizes.
Used by Edexcel
Specification 1c.06 · Paper 1, Paper 2
Revise: Stratified samplingIn proportional stratified sampling, larger strata contribute more members to the sample, and smaller strata contribute fewer. Members are then selected randomly within each stratum.
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