| Exam Board | OCR MEI |
|---|---|
| Module | S1 (Statistics 1) |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Topic | Measures of Location and Spread |
| Type | Vertical line chart construction |
| Difficulty | Easy -1.8 This is a very straightforward descriptive statistics question requiring only basic recall and simple reading from a frequency table. Finding the median/mode from discrete data, drawing a vertical line chart, and identifying obvious positive skewness are all routine S1 tasks with no problem-solving or calculation complexity. |
| Spec | 2.02a Interpret single variable data: tables and diagrams2.02f Measures of average and spread |
| Number of people | 1 | 2 | 3 | 4 |
| Frequency | 50 | 31 | 16 | 5 |
5 In a traffic survey, the number of people in each car passing the survey point is recorded. The results are given in the following frequency table.
\begin{center}
\begin{tabular}{ | l | c | c | c | c | }
\hline
Number of people & 1 & 2 & 3 & 4 \\
\hline
Frequency & 50 & 31 & 16 & 5 \\
\hline
\end{tabular}
\end{center}
(i) Write down the median and mode of these data.\\
(ii) Draw a vertical line diagram for these data.\\
(iii) State the type of skewness of the distribution.
\hfill \mbox{\textit{OCR MEI S1 Q5 [5]}}