In: Statistics and Probability
If A and B are mutually exclusive, with P(A) = 0.3, P(B) = 0.5. What is the probability that
•either A or B occurs;
•A occurs but B does not;
•both A and B occur;
•neither A nor B occur;
•A or B but not both?
According to the question it is said that A and B are mutually exclusive events it means that both events cannot happen together it means that
then
then
1) either A or B occurs means that we have to find the probability of P(AUB)
2)A occurs but B does not it means that we have to find the probability of
then can be written as
3) Both A and B cannot occur as they are mutually exclusive hence
4) neither A occurs nor B occurs means that we have to find
5)Since A and B are mutually exclusive events they cannot occur together ,either A will occur or B then