Refer to the following table Solutiona PA3 nA3 nS 1332 04

Solution

a)
P(A3) = n(A3)/ n(S) = 13/32 = 0.41

b)
P(B2/A2) = P( B2 n A2) / P(A2) = (7/32)/(12/32) = 7/ 12 = 0.58

c)
P( B1 and A2 ) = 5/32 = 0.15625 ~ 0.16