| Exam Board | OCR |
|---|---|
| Module | H240/02 (Pure Mathematics and Statistics) |
| Year | 2020 |
| Session | November |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Topic | Data representation |
| Type | Total sample size from histogram |
| Difficulty | Easy -1.3 This is a straightforward histogram interpretation question requiring basic understanding that frequency = frequency density × class width. Parts (a) and (d) involve simple proportion calculations, (b) is direct recall of units, and (c) is a qualitative suggestion. All parts are routine with minimal problem-solving demand. |
| Spec | 2.02b Histogram: area represents frequency |
The histogram shows information about the numbers of cars in five different price ranges, sold in one year at a car showroom.
\includegraphics{figure_9}
It is given that 66 cars in the price range £10000 to £20000 were sold.
\begin{enumerate}[label=(\alph*)]
\item Find the number of cars sold in the price range £50000 to £90000. [1]
\item State the units of the frequency density. [1]
\item Suggest one change that the management could make to the diagram so that it would provide more information. [1]
\item Estimate the number of cars sold in the price range £50000 to £60000. [1]
\end{enumerate}
\hfill \mbox{\textit{OCR H240/02 2020 Q9 [4]}}