- The histogram in Figure 1 shows the time, to the nearest minute, that a random sample of 100 motorists were delayed by roadworks on a stretch of motorway.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{bc8ef6c7-a321-4ecf-962d-f469a95fc8c8-02_1312_673_349_639}
\captionsetup{labelformat=empty}
\caption{Figure 1}
\end{figure}
- Complete the table.
| Delay (minutes) | Number of motorists |
| 4-6 | 6 |
| 7-8 | |
| 9 | 21 |
| 10-12 | 45 |
| 13-15 | 9 |
| 16-20 | |
- Estimate the number of motorists who were delayed between 8.5 and 13.5 minutes by the roadworks.