Here are the ages of a company's employees.
| 31 | 24 | 43 | 52 | 19 | 59 | 29 |
| 55 | 51 | 38 | 20 | 38 | 36 | 26 |
| 31 | 38 | 23 | 29 | 25 | 55 | 26 |
Draw an ordered stem and leaf diagram to show this information. You must include a key.
One of the employees is selected at random. Find the probability that they are younger than 30.