Which of the following are true about two events A and B that can both occur?
A.If A and B are disjoint, then P(A) must equal P(B) If A and B are independent
B.then P(A|B)=P(A) If A and B are disjoint
C.then they cannot be independent If A and B are disjoint
D.then P(A cap B)=0 If A and B are disjoint then they must be independent .