Probability of event A: P(A)

Probability of event B: P(B)

Probability that event A does not occur: P(A’): 0.7

Probability that event B does not occur: P(B’): 0.5

Probability that event A and/or event B occurs P(A∪B): 0.65

Probability that event A and event B both occur P(A∩B): 0.15

Probability that either event A or event B occurs, but not both: 0.5