Here are the test scores for six students.
| 14 | 22 | 18 | 9 | 15 | 15 |
| ---- | --- | ---- | --- | ---- | ---- |
Work out the range of the test scores.
Work out the mean of the test scores.
201 exam-style questions on Eduqas GCSE Maths Averages. Each one has a worked solution and a mark scheme showing where the marks go.