11. How many different committees of 3 people can be chosen to work on the JS Prom from a group of 9 people? A. C(9,6) = 9! / ((9-6)!6!) B. C(9,3) = 9! / ((9-3)!3!) C. C(6,9) = 6! / ((6-9)!9!) D. C(3,9) = 3! / ((3-9)!9!)
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The combination formula is given by C(n, r) = n! / (r!(n-r)!), where n is the total number of people and r is the number of people we want to choose. In this case, n = 9 (the total number of people) and r = 3 (the number of people we want to choose). Using the Show more…
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