Question 909045
a) is a male majoring in business? .50*.20 
 b) is either a male or a business major? .60 + .20  -  .50*.20
 c) is a female not majoring in business)) .40*.80
P(A|B) = P(A and B)/P(B)
 D) is a business major if the student is female? P(bus|F) = .50* .20/.40
 E) is a male if the student is not a business major? P(M|not bus) = .60*.80/.80