erinmcdonaldr4090 erinmcdonaldr4090
  • 30-12-2017
  • Mathematics
contestada

In how many ways can you select two people from a group of 18 if the order of selection is not important?

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Аноним Аноним
  • 01-01-2018
THis would be 18C2   = 18 * 17 / 2 * 1  =   153 ways
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