Here are the quiz scores of seven students.
| 15 | 8 | 12 | 20 | 15 | 14 | 7 |
Work out the range of these quiz scores.
Work out the median of these quiz scores.
Work out the mean of these quiz scores.
201 exam-style questions on AQA GCSE Maths Averages. Each one has a worked solution and a mark scheme showing where the marks go.