The Probability that at least one of the events A & B occurs is 0.6. If A & B occur simultaneously with probability 0.3 then what is the value of P(A ̅) + P(B ̅) ?
Answer & explanation
Correct answer: option 2
P(AUB) = P(A) + P(B) - P(A∩B) and P(A) = 1- P(A ̅)