The number of hours seven people spent volunteering last week is shown below.
| 6 | 3 | 6 | 2 | 8 | 7 | 10 |
| ---- | --- | ---- | ---- | ---- | ---- | --- |
Work out the range of the number of hours.
Work out the median of the number of hours.
Work out the mean of the number of hours.
