Advanced Higher Statistics Practice Questions - Advanced Higher Statistics (Qualifications Scotland SCQF Level 7) Exam

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A statistician divides a population of Scottish high school students into subgroups based on local authority area and then takes a simple random sample from within each subgroup proportional to its size. Which sampling method is being used?

Stratified random sampling Cluster sampling Systematic sampling Quota sampling

Correct Answer:

Stratified random sampling

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