Loading…
Loading…
GCSE Mathematics · key term
A sample that reflects the relevant characteristics of the population reasonably well.
Used by AQA, Edexcel and OCR
Specification S1, S5 · Paper 1, Paper 2, Paper 3
Revise: Population InferenceEven a fair random method does not guarantee a perfectly representative sample. Different random samples from the same population will usually contain different members and produce slightly different statistics. This is sampling variation.
A sample whose relevant characteristics reflect those of the population it is being used to describe.
Specification S1, S5 · Paper 1, Paper 2, Paper 3
A sample whose relevant characteristics broadly reflect those of the population from which it was selected.
Revise: Populations and SamplesA representative sample reflects the relevant characteristics of the population. Which characteristics matter depends on the investigation. If views differ by age, location or year group, a sampling method that omits one of those groups may give a misleading result.
A sample that reflects the important characteristics of the population reasonably well.
Specification 12.01a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
A sample whose relevant characteristics reflect those of the population sufficiently well for the intended inference.
Create a free account to read GCSE Mathematics revision notes for your exam board and track your progress.