AQA GCSE Mathematics · 8300
Specification P5 · Paper 1, Paper 2, Paper 3
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GCSE Mathematics · key term
A sample collected without a systematic tendency to favour or exclude particular outcomes.
Used by AQA and Edexcel
Specification P5 · Paper 1, Paper 2, Paper 3
Specification P5 · Paper 1, Paper 2, Paper 3
A sample selected or produced without systematically favouring particular outcomes or members of the population.
Revise: Empirical SamplesLarge differences in a small sample may be explained by chance, whereas persistent differences in a large, unbiased sample may suggest that the model or its assumptions are unsuitable.
Describe the pattern as a tendency: a larger unbiased sample is generally more reliable, but its relative frequency need not get closer to the theoretical probability at every step.
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