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10-9.
  1. On a six-person bowling team, only four players bowl in any game. Refer to Math Notes box in this lesson for help with this problem. Homework Help ✎

    1. How many different four-person teams can be made if the order in which they bowl does not matter?

    2. How many different bowling lineups of four players can be made if the order does matter?

6C4 = 15

n = 6
r = 4