Five descriptions of sampling methods are given.
A: Split the population into groups and select each group in proportion to its size. B: Give every member of the population an equal chance of selection. C: Select convenient members of the population. D: Select members using a repeating interval. E: Split the population into groups and fill a fixed number from each group non-randomly.
Match quota, stratified, simple random, opportunity and systematic sampling to A–E.
36 exam-style questions on OCR (MEI) A Level Maths 2.1 Sampling, covering 2.1.1 Population and sample, 2.1.2 Samples to make informal inferences, 2.1.3 Random sampling, 2.1.4 Variety of sampling techniques, 2.1.5 Select or evaluate sampling techniques, and 2.1 Sampling. Each one has a worked solution and a mark scheme showing where the marks go.