Final answer:
The probability of events A and B occurring simultaneously is 0 due to their mutually exclusive nature.
Step-by-step explanation:
Two events A and B are mutually exclusive, which means that they cannot occur at the same time. The probability of A occurring is 0.20, and the probability of B occurring is 0.30. To find the probability of both A and B occurring simultaneously (P(A∩B)), since these events are mutually exclusive, we know that the intersection of A and B is empty, meaning P(A∩B) = 0.