Directions: Complete each of the following exercises and include the computations you used to solve them.

1. In a class there are 10 blonde students (girls), 20 brunette students(girls), five blonde students(boys) and 10 dark-haired students (boys). One day 45 students attend, find the probability that a student:

a) Be a man.

b) Be a brunette woman.

c) Be it a man or a woman.