The table below summarizes the results of a school survey given to 80 students about their favorite type of book.
| Fiction | Non-Fiction | Total | |
|---|---|---|---|
| Grade 9 | 25 | 15 | 40 |
| Grade 10 | 20 | 20 | 40 |
| Total | 45 | 35 | 80 |
If a student is selected at random from those surveyed, what is the probability that the student prefers fiction, given that the student is in Grade 9?
