zvoldahl1389 zvoldahl1389

01-01-2018
Mathematics

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How many ways can you select 4 volunteers out of 13?

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mreijepatmat mreijepatmat

01-01-2018

It's a combination of 4 chosen among 13:

¹³C₄ = (13!)/(4!).(13-40!)

¹³C₄ = (13!)/(4!).(9!)

¹³C₄ = 715 Ways

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