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