| Exam Board | Edexcel |
|---|---|
| Module | S2 (Statistics 2) |
| Year | 2005 |
| Session | January |
| Marks | 7 |
| 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 purely definitional question requiring recall of basic statistical terminology with no calculation or problem-solving. Students need only state textbook definitions and provide straightforward examples, making it significantly easier than average A-level questions which typically require application of techniques. |
| Spec | 2.01a Population and sample: terminology2.01b Informal inferences: from samples |
2. (a) Explain what you understand by (i) a population and (ii) a sampling frame.
The population and the sampling frame may not be the same.\\
(b) Explain why this might be the case.\\
(c) Give an example, justifying your choices, to illustrate when you might use
\begin{enumerate}[label=(\roman*)]
\item a census,
\item a sample.
\end{enumerate}
\hfill \mbox{\textit{Edexcel S2 2005 Q2 [7]}}