Question: if two events a and b are mutually exclusive what does the special rule of addition state quizlet?
Answer: If two events A and B are mutually exclusive, the probability of one or the other events occurring equals the sum of their probabilities. If A and B are two events not mutually exclusive, then P (A or B) is given by formula: P(A or B)= P(A) + P(B) - P(A and B)