3 The times taken, in minutes, by 360 employees at a large company to travel from home to work are summarised in the following table.
| Time, \(t\) minutes | \(0 \leqslant t < 5\) | \(5 \leqslant t < 10\) | \(10 \leqslant t < 20\) | \(20 \leqslant t < 30\) | \(30 \leqslant t < 50\) |
| Frequency | 23 | 102 | 135 | 76 | 24 |
- Draw a histogram to represent this information.
\includegraphics[max width=\textwidth, alt={}, center]{217c5a58-2966-4b86-b3b6-9d1676d2979c-04_1198_1200_836_516} - Calculate an estimate of the mean time taken by an employee to travel to work.