| Exam Board | Edexcel |
|---|---|
| Module | S2 (Statistics 2) |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Measures of Location and Spread |
| Type | Sampling frames and populations |
| Difficulty | Easy -1.8 This is a straightforward recall question testing basic definitions of sampling terminology (sampling frame, sampling units) and standard advantages of sampling vs census. Requires no calculation, statistical technique, or problem-solving—just memorization of standard S2 concepts. Well below average difficulty for A-level. |
| Spec | 2.01a Population and sample: terminology |
| Answer | Marks | Guidance |
|---|---|---|
| (a) List of all drivers insured with that company | B1 | |
| (b) Individual drivers | B1; B2 | Sample is quicker and cheaper |
(a) List of all drivers insured with that company | B1 |
(b) Individual drivers | B1; B2 | Sample is quicker and cheaper
**Total: 4 marks**
---An insurance company is investigating how often its customers crash their cars.
\begin{enumerate}[label=(\alph*)]
\item Suggest an appropriate sampling frame. [1 mark]
\item Describe the sampling units. [1 mark]
\item State the advantage of a sample survey over a census in this case. [2 marks]
\end{enumerate}
\hfill \mbox{\textit{Edexcel S2 Q1 [4]}}