9709 P53 - Nov 2021 - Q3
2418
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) | \( 0 \le t < 5 \) | \( 5 \le t < 10 \) | \( 10 \le t < 20 \) | \( 20 \le t < 30 \) | \( 30 \le t < 50 \) |
|---|---|---|---|---|---|
| Frequency | 23 | 102 | 135 | 76 | 24 |
(a) Draw a histogram to represent this information.
(b) Calculate an estimate of the mean time taken by an employee to travel to work.
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