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Ch. 14-- Voting Preference tables E, F, G, and H are running for math club president If everyone is asked to rank their preferences, how many different ballots could exist? ____ Instead, we only get 4 as seen on the right. Question: Which one should win? Number of votes 150110807 1 st placeEFFG 2 nd placeFGHF 3 rd placeGHGH 4 th placeHEEE
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Different voting techniques Plurality Borda Count Plurality with Elimination Pairwise comparison – See book for definitions (p. 777) – See book for Ex. #1: PRST (p. 775- )
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Ex #2-- Plurality Number of votes 130120100150 1 st placeADDC 2 nd placeBBBB 3 rd placeCCAA 4 th placeDACD
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Ex #2-- Borda Count Number of votes 130120100150 1 st placeADDC 2 nd placeBBBB 3 rd placeCCAA 4 th placeDACD
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Ex 2- Plurality with Elimination Number of votes 130120100150 1 st placeADDC 2 nd placeBBBB 3 rd placeCCAA 4 th placeDACD
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Ex 2- Pairwise Comparison Number of votes 130120100150 1 st placeADDC 2 nd placeBBBB 3 rd placeCCAA 4 th placeDACD
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