| Exam Board | Edexcel |
|---|---|
| Module | S3 (Statistics 3) |
| Year | 2016 |
| Session | June |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Non-parametric tests |
| Type | Sampling method comparison |
| Difficulty | Easy -1.8 This is a pure recall question requiring students to list standard advantages of stratified sampling from textbook definitions. No calculations, problem-solving, or application of concepts—just memorization of sampling method properties. Well below average difficulty for A-level. |
| Spec | 2.01c Sampling techniques: simple random, opportunity, etc2.01d Select/critique sampling: in context |
\begin{enumerate}[label=(\alph*)]
\item State two reasons why stratified sampling might be a more suitable sampling method than simple random sampling.
(2)
\item State two reasons why stratified sampling might be a more suitable sampling method than quota sampling.
(2)
\end{enumerate}
\hfill \mbox{\textit{Edexcel S3 2016 Q1}}