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(Solved): 7. Consider A Group Of N Distinct People. A Committee Of Size K Is To Be Selected Without Replacemen...


7. Consider a group of n distinct people. A committee of size k is to be selected without replacement. From the k people sele

7. Consider a group of n distinct people. A committee of size k is to be selected without replacement. From the k people selected, a Chair and Secretary are to be elected allowing for the possibility that the same person can hold both positions. Argue that the total number of committees satisfies the identity: È ()*2 = 2?n(n+1)


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