| Exam Board | Edexcel |
|---|---|
| Module | S3 (Statistics 3) |
| Year | 2004 |
| Session | June |
| Marks | 6 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Combinations & Selection |
| Type | Calculating stratified sample sizes |
| Difficulty | Easy -2.0 This is a straightforward recall question about basic sampling methods requiring only textbook definitions and simple arithmetic (calculating stratified sample sizes: 8 girls, 7 boys). No problem-solving, proof, or conceptual depth required—well below average A-level difficulty. |
| Spec | 2.01c Sampling techniques: simple random, opportunity, etc |
\begin{enumerate}
\item There are 64 girls and 56 boys in a school.
\end{enumerate}
Explain briefly how you could take a random sample of 15 pupils using\\
(a) a simple random sample,\\
(b) a stratified sample.\\
\hfill \mbox{\textit{Edexcel S3 2004 Q1 [6]}}