| Exam Board | Edexcel |
|---|---|
| Module | S2 (Statistics 2) |
| Year | 2002 |
| Session | June |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Measures of Location and Spread |
| Type | Sampling frames and populations |
| Difficulty | Easy -1.2 This is a pure definitional question requiring only recall of statistical terminology (statistic, sampling distribution) with no calculation or problem-solving. While it tests understanding of fundamental concepts, it demands no mathematical manipulation or insight beyond memorizing standard definitions from the S2 syllabus. |
| Spec | 2.01a Population and sample: terminology |
A random sample $X_1, X_2, \ldots, X_n$ is taken from a finite population. A statistic $Y$ is based on this sample.
\begin{enumerate}[label=(\alph*)]
\item Explain what you understand by the statistic $Y$. [2]
\item Give an example of a statistic. [1]
\item Explain what you understand by the sampling distribution of $Y$. [2]
\end{enumerate}
\hfill \mbox{\textit{Edexcel S2 2002 Q2 [5]}}