11.3.29 An election ballot asks voters to select four city commissioners from a group of eight candidates. In how many ways can this be done?

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Mathematics

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1 November, 13:38

11.3.29 An election ballot asks voters to select four city commissioners from a group of eight candidates. In how many ways can this be done?

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Orion Coffey · Answer 1

Any 4 from 8 is a permutation, solved by the use of factorials:

8! / ((8-4) ! x 4!) which simplifies to (8 x 7 x 6 x 5) / (4 x 3 x 2)

70 different ways.