A school is surveying students in the Drama and Music clubs. The table shows how many students in each club are in grade 10 or grade 11.
| Drama | Music | |
|---|---|---|
| Grade 10 | 7 | 5 |
| Grade 11 | 3 | 7 |
If a student is selected at random from the Music club, what is the probability that the student is in grade 11?
