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Mathematics LibreTexts

7: Voting Systems

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    • 7.1: Voting Methods
      Every couple of years or so, voters go to the polls to cast ballots for their choices for mayor, governor, senator, president, etc. Then the election officials count the ballots and declare a winner. But how do the election officials determine who the winner is. If there are only two candidates, then there is no problem figuring out the winner. The candidate with more than 50% of the votes wins. This is known as the majority. So the candidate with the majority of the votes is the winner.
    • 7.2: Weighted Voting
      There are some types of elections where the voters do not all have the same amount of power. This happens often in the business world where the power that a voter possesses may be based on how many shares of stock he/she owns. In this situation, one voter may control the equivalent of 100 votes where other voters only control 15 or 10 or fewer votes. Therefore, the amount of power that each voter possesses is different.
    • 7.3: Exercises


    7: Voting Systems is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Maxie Inigo, Jennifer Jameson, Kathryn Kozak, Maya Lanzetta, & Kim Sonier via source content that was edited to conform to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.