Giving a test to a group of students, the grades and gender are summarized below. round your answers to 4 decimal places.
a b c total
male 16 13 6 35
female 2 3 8 13
total 18 16 14 48
if one student is chosen at random:
1. find the probability that the student was female and got a "b".
2. find the probability that the student was male and got a "a".
3. find the probability that the student got a b.