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Homework Help: Combinations-different way to form groups of people

  1. Mar 6, 2012 #1
    Hello everyone,

    I am new to this forum. Need help with this problem

    How many ways you can select 3-person groups from a group of 8 students?

    My solution:
    Number of ways to make one group of 3 persons = 8C3
    How do I proceed from here?

    Thank you.
  2. jcsd
  3. Mar 7, 2012 #2
    Apply the formula nCr = [itex]\frac{n!}{(n-r)! r!}[/itex]
    or just simply use a calculator
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