A group of 30 students took tests in three subjects: Math, Science, and History. Each student's performance was categorized as Excellent, Good, or Fair. No student achieved the same performance level in two different subjects. The table above shows the number of students at each performance level for each subject.
Number of Students by Performance Level and Subject
| Excellent | Good | Fair | Total | |
|---|---|---|---|---|
| Math | 3 | 5 | 2 | 10 |
| Science | 2 | 6 | 2 | 10 |
| History | 4 | 3 | 3 | 10 |
| Total | 9 | 14 | 7 | 30 |
If a student is selected at random, what is the probability that the student achieved an "Excellent" performance in Math, given that the student achieved an "Excellent" performance in one of the three subjects?
1/9
1/3
3/10
9/30
