A test was given to a group of students. The grades and gender are summarized below
If one student is chosen at random from those who took the test,
Find the probability that the student was female GIVEN they got a 'B'.
| A | B | C | Total | |
| Male | 10 | 19 | 17 | 46 |
| Female | 6 | 12 | 5 | 23 |
| Total | 16 | 31 | 22 | 69 |
If one student is chosen at random from those who took the test,
Find the probability that the student was female GIVEN they got a 'B'.