Here is a stem and leaf diagram showing the mass, in grams, of some apples.
| 15 | 5 7 8 8 |
| 16 | 0 2 4 6 8 |
| 17 | 0 1 2 4 |
| 18 | 0 2 4 6 |
Key: 15 | 6 = 156 grams
Work out the median mass and hence work out the interquartile range.
116 exam-style questions on WJEC GCSE Maths Stem and Leaf. Each one has a worked solution and a mark scheme showing where the marks go.