| Exam Board | Edexcel |
|---|---|
| Module | S1 (Statistics 1) |
| Year | 2002 |
| Session | November |
| 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 straightforward recall question from S1 requiring only basic knowledge of why models are used and identification of standard distributions (normal for continuous measurements, discrete uniform for fair die). No calculations, problem-solving, or conceptual depth required—purely definitional content that would be covered in early lectures. |
| 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 briefly why statistical models are used when attempting to solve real-world problems. [2]
\item Write down the name of the distribution you would recommend as a suitable model for each of the following situations.
\begin{enumerate}[label=(\roman*)]
\item The weight of marmalade in a jar.
\item The number on the uppermost face of a fair die after it has been rolled.
\end{enumerate}
[2]
\end{enumerate}
\hfill \mbox{\textit{Edexcel S1 2002 Q1 [4]}}