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GCSE Mathematics · key term
A sample in which every member of the population has an equal chance of being selected.
Used by Edexcel and OCR
Specification S1 · Paper 1, Paper 2, Paper 3
Revise: Populations and SamplesFor a simple random sample, assign a different number to every member and use randomly generated numbers to choose the sample. This reduces deliberate selection bias because every member has an equal chance of selection.
Specification 12.01a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
A sample selected so that every member of the population has an equal chance of being chosen.
To describe a simple random sample, state that the complete population is listed and numbered, then distinct random numbers are generated until the required sample size is reached.
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In a simple random sample, every member of the population has an equal chance of selection.