How many different four person committees can be formed from a group of six boys and four girls?
A) 10!/4! (ten factorial over four factorial)
B) 10P4 (ten permutations of four)
C) 6C2 * 4C2 (six combinations of two times four combinations of two)
D) 10C4 (ten combinations of four)
A) 10!/4! (ten factorial over four factorial)
B) 10P4 (ten permutations of four)
C) 6C2 * 4C2 (six combinations of two times four combinations of two)
D) 10C4 (ten combinations of four)
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(10*9*8*7) /(1*2*3*4) = 10C4 - the order isn't important.