SOLUTION: how many ways a judge can select a mini-jury of 6 persons from a pool of 20.

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Question 365073: how many ways a judge can select a mini-jury of 6 persons from a pool of 20.
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi, 

how many ways a judge can select a mini-jury of 6 persons from a pool of 20.

20C6

nCx = n%21%2F%28x%21%28n-x%21%29%29

20C6 = 20!/6!14! = 20*19*18*17*16*15/6*5*4*3*2 =  38760 ways