The office manager of an insurance company has the following data on the functioning of the copiers in the office:
| Copier | Days Functioning | Days Out of Service |
| 1 | 209 | 51 |
| 2 | 217 | 43 |
| 3 | 258 | 2 |
| 4 | 229 | 31 |
| 5 | 247 | 13 |
What is the probability of a copier being out of service based on these data?
Solution
