| Exam Board | Edexcel |
|---|---|
| Module | S1 (Statistics 1) |
| Year | 2004 |
| Session | June |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Probability Definitions |
| Type | Dice probability problems |
| Difficulty | Moderate -0.3 This is a straightforward S1 probability question requiring systematic enumeration of outcomes with a non-standard die. Students must list favorable outcomes (sum ≥ 5) from 36 total possibilities, which is slightly easier than average due to the clear structure and routine calculation, though the non-standard die adds minor complexity beyond pure recall. |
| Spec | 2.03a Mutually exclusive and independent events2.03b Probability diagrams: tree, Venn, sample space |
\begin{enumerate}
\item A fair die has six faces numbered $1,2,2,3,3$ and 3 . The die is rolled twice and the number showing on the uppermost face is recorded each time.
\end{enumerate}
Find the probability that the sum of the two numbers recorded is at least 5 .\\
(5)\\
\hfill \mbox{\textit{Edexcel S1 2004 Q1 [5]}}