Here are scores of some students in a test.
| 51 | 53 | 49 | 88 | 62 |
| 74 | 68 | 53 | 67 | 51 |
| 59 | 65 | 42 | 43 | 59 |
| 63 | 62 | 40 | 67 | 59 |
Draw an ordered stem and leaf diagram to show this information. You must include a key.
Work out the median score
Another student sits the test and scores 80. Boris says: "This means the median will increase." Is Boris correct? You must explain your answer.