June 2022 Paper 3 Q15
15 Researchers are investigating the average time spent on social media by adults on the electoral register of a town.
They select every 100th adult from the electoral register for their investigation.
(a) Identify the population in their investigation. [1 mark]
(b)
(i) State the name of this method of sampling. [1 mark]
(ii) Describe one advantage of this sampling method. [1 mark]
| Scheme | Marks | AO |
|---|---|---|
| States the correct population Allow ‘people’ or ‘names’ or ‘members’ for adults Must see electoral register | B1 | 3.3 |
| (1) |
Typical solution
Adults on the electoral register
| Scheme | Marks | AO |
|---|---|---|
| (i) Recalls correct name for sampling method | B1 | 1.2 |
| (1) | ||
| (ii) States one advantage that sampling method For example
Do not ignore incorrect statement | E1 | 3.5b |
| (1) | ||
| (3 marks) |
Typical solution
(i)
Systematic sampling
(ii)
Cheap to collect