Answer:
see below
Explanation:
The intersection of A and B is the list of elements that show up in both sets. Then the remaining elements of A and of B are those elements of the respective set that are not in the intersection.
The elements that are not in either A or B are listed at the lower left of the diagram (outside the circles).
There are 2 members of the 9-member set that are in the intersection of A and B. If some set member is chosen at random, the probability it is one of those is 2/9.