| Exam Board | Edexcel |
|---|---|
| Module | S1 (Statistics 1) |
| Session | Specimen |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Modelling and Hypothesis Testing |
| Type | Statistical modeling theory |
| Difficulty | Easy -1.8 This is a basic definitional question testing recall of fundamental statistical concepts with no calculation or problem-solving required. Students simply need to state what a statistical model is and give two straightforward examples of random variables (e.g., 'rolling a fair die' for discrete uniform, 'heights of students' for normal). This is significantly easier than typical A-level questions that require application or multi-step reasoning. |
| Spec | 2.04b Binomial distribution: as model B(n,p)2.04e Normal distribution: as model N(mu, sigma^2)2.04h Select appropriate distribution |
\begin{enumerate}[label=(\alph*)]
\item Explain what you understand by a statistical model. [2]
\item Write down a random variable which could be modelled by
\begin{enumerate}[label=(\roman*)]
\item a discrete uniform distribution,
\item a normal distribution.
\end{enumerate}
[2]
\end{enumerate}
\hfill \mbox{\textit{Edexcel S1 Q1 [4]}}