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10 October, 16:30

There are ten members of the debate team: Ann, Bill, Carla, Don, Ed, Frank, Gretchen, Harry, Isabel, and Jen. If they randomly choose three co-leaders of the group, what is the probability that Gretchen, Don, and Carla are chosen as the co-leaders?

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  1. 10 October, 20:14
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    1/120

    Step-by-step explanation:

    There are 10 members, and three are chose as co-leaders. The number of possible combinations is:

    ₁₀C₃ = 120

    One of those 120 combinations is Gretchen, Don, and Carla. So the probability is 1/120, or approximately 0.83%.
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