In exercises 3-18, complete the following:
How many voters voted in this election?
How many votes are needed for a majority?
Find the winner under the plurality method.
Find the winner under the Instant Runoff Voting method.
Find the winner under the Borda Count Method.
Find the winner under Copeland's method.
The Beaverton City Council has an election for one open position. There are four candidates (labeled A, B, C, and D for convenience). The preference schedule for the election is:
| Number of voters | 120 | 50 | 40 | 90 | 60 | 100 |
|---|---|---|---|---|---|---|
| 1st choice | C | B | D | A | A | D |
| 2nd choice | D | C | A | C | D | B |
| 3rd choice | B | A | B | B | C | A |
| 4th choice | A | D | C | D | B | C |
Lee et al., Math in Society, §5.2 Voting Methods, Exercise 9