Here are some descriptions of sampling methods.
A: The population is split into groups and a proportional representation of the different groups is selected.
B: Every member of the population has an equal chance of being selected.
C: A convenient sample is taken from any members of the population at any time.
D: A repetitive system used to select a sample from the population.
E: The population is split into groups and a certain number from each group is chosen in any order.
In the table below, match each sampling method with the letter of its description.
| Method | Letter |
|---|---|
| Quota Sampling | |
| Stratified Sampling | |
| Simple Random Sampling | |
| Opportunity Sampling | |
| Systematic Sampling |
23 exam-style questions on Edexcel AS Level Maths Data Collection, covering 1.1 Populations and Samples, 1.2 Sampling, 1.3 Non-Random Sampling, 1.4 Types of Data, and 1.5 The Large Data Set. Each one has a worked solution and a mark scheme showing where the marks go.