Edexcel GCSE Statistics · 1ST0
Specification 1c.03, 1c.04, 2h.03 · Paper 1, Paper 2
A tendency for a selection method to favour some parts of a population over others, which can make conclusions misleading.
Revise: Judgement and opportunity samplingSampling bias arises when the selection method favours some parts of the population over others. This matters when the people selected have different views or characteristics from those left out: conclusions drawn from the sample may then give a misleading picture of the whole population.
- Revise: Appropriate sampling techniques
A tendency for a sampling method to favour or exclude particular members or groups, so the sample may not fairly represent the population.