Match each sampling method to its description.
A: The population is divided into groups and a proportional random sample is taken from each group. B: Every member of the population has an equal chance of being selected. C: Readily available members of the population are selected. D: A random start is chosen and then members are selected at a fixed interval. E: The population is divided into groups and a required number is chosen non-randomly from each group. F: Whole groups are selected at random and every member of each selected group is included.
| Method | Description letter |
|---|---|
| Quota sampling | |
| Stratified random sampling | |
| Simple random sampling | |
| Opportunity sampling | |
| Systematic sampling | |
| Cluster sampling |
36 exam-style questions on OCR A Level Maths 2.1 Statistical Sampling, covering 2.1.1 Population and sample, 2.1.2 Informal inferences from samples, 2.1.3 Sampling techniques, 2.1.4 Selecting or critiquing sampling techniques, and 2.1 Statistical Sampling. Each one has a worked solution and a mark scheme showing where the marks go.