A survey of 60 students recorded whether each student volunteers in the community and plays a musical instrument.
| Plays a musical instrument | Does not play a musical instrument | Total | |
|---|---|---|---|
| Volunteers | 12 | 18 | 30 |
| Does not volunteer | 6 | 24 | 30 |
| Total | 18 | 42 | 60 |
Which choice is the probability that a randomly selected student who volunteers plays a musical instrument?