A vocational test was applied to 1000 students in a school. The table below shows the results, by field of study and gender.

|  | Exatas | Humanas | Biológicas |
| :---: | :---: | :---: | :---: |
| Masculino | 232 | 116 | 207 |
| Feminino | 112 | 153 | 180 |

If a student is chosen at random, determine the probability that the student is:

(a) in the field of exact sciences;

(b) in the field of humanities, being male;

(c) female, being in the field of biological sciences.
(a) From the exact sciences, we have $232+112=344$ students, and the probability of randomly selecting a student from the exact sciences is $\frac{344}{1000}=0.344$.

(b) Of the male gender, we have $232+116+207=555$ students, and the probability of randomly selecting a student from the humanities is $\frac{116}{555}=0.209$.

(c) From the biological sciences, we have $207+180=387$ students, and the probability of randomly selecting a female student is $\frac{180}{387}=0.465$.