Here are the speeds, in mph, of 20 cars.
| 55 | 72 | 44 | 63 | 48 | 57 | 40 | 68 | 46 | 62 |
| 77 | 51 | 42 | 69 | 50 | 66 | 75 | 53 | 70 | 64 |
Draw an ordered stem and leaf diagram to show this information. You must include a key.
Work out the median speed.
116 exam-style questions on OCR GCSE Maths Stem and Leaf. Each one has a worked solution and a mark scheme showing where the marks go.