Addition Law of probability for mutually exclusive event is equal _______________?

• A. P(AUB)=P(A) + (B)
• B. P(AUB) = P(A) + P(B) – P(A∩B)
• C. P(A∩B) = P(A) + P(B) + P(A∩B)
• D. P(A∩B) = P(A). P(B