If P(A)=x,P(B)=yP(A) = x, P(B) = yP(A)=x,P(B)=y, and A,BA, BA,B are independent, what is P(Ac∩Bc)P(A^c \cap B^c)P(Ac∩Bc) in terms of xxx and yyy?
1 - xy
(1-x)(1-y)
1 - x - y
xy