last method we will look at is called approval voting. Here, we
will use a different kind of preference table. The good news is that our
table is much simpler in one respect. Each voter does not have to rank
all of the candidates first, second, third, etc. Instead, each voter simply
approves or disapproves of each candidate. So if you are a voter, you
can vote for one candidate, or two candidates, or three candidates, etc.
Voting for two or more candidates doesn't dilute your vote; each candidate
that you approve of gets one full vote. When the votes are counted, the
candidate with the most votes wins.
the table below, each row corresponds to a different candidate (whom
we name W, X, Y and Z), each column corresponds to a different voter,
A means "approve" and D means "disapprove."
To see who wins or comes in second and so on just count the number of A (approvals) for each candidate. What do you find?