| Exam Board | Edexcel |
|---|---|
| Module | S2 (Statistics 2) |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Modelling and Hypothesis Testing |
| Type | Population and sampling frames |
| Difficulty | Easy -1.8 This is a pure recall question requiring only definitions of basic statistical terminology with no calculation, problem-solving, or application. It's significantly easier than average A-level questions which typically require some mathematical work or reasoning. |
| Spec | 2.01a Population and sample: terminology2.01d Select/critique sampling: in context |
| Answer | Marks | Guidance |
|---|---|---|
| (a) A mathematical description which allocates a probability \(p\) to each value of a variable \(X\) reflecting the relative likelihood of that value occurring | B2 | |
| (b) A list of all the members of a population | B1 | |
| (c) The individual members of population, available for sampling | B1 | 4 marks total |
(a) A mathematical description which allocates a probability $p$ to each value of a variable $X$ reflecting the relative likelihood of that value occurring | B2 |
(b) A list of all the members of a population | B1 |
(c) The individual members of population, available for sampling | B1 | 4 marks total |Briefly explain what is meant by
\begin{enumerate}[label=(\alph*)]
\item a statistical model, [2 marks]
\item a sampling frame, [1 mark]
\item a sampling unit. [1 mark]
\end{enumerate}
\hfill \mbox{\textit{Edexcel S2 Q1 [4]}}