Part A:
The number of outcomes that each of them will have to choose anyone at random is calculated below.
n = 3 x 3 = 9
This is because, Al will have 3 choices and similarly, Bill will also have three choices. These outcomes are as written below.
S = (1,1), (1,2), (1,3), (2, 1), (2,2), (2, 3), (3, 1), (3, 2), and (3,3)
Part B: To make the same choice, there will only be three outcomes. These are:
S = (1, 1), (2, 2) and (3, 3)
Part C: If neither of them will vote for 2, there will only be four outcomes. This is because each of them will only have two choices. These are:
S = (1, 1), (1, 3), (3, 1), and (3,3)