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Verified answer
Mapel : MatematikaKelas : XII SMA
Bab : Peluang
Pembahasan :
Bnyak cara memilih 3 pria dari 9 pria
= 9C3
= 9!/(9 - 3)!3!
= 9!/6!3!
= (9 x 8 x 7)/6
= 84
n(s) = (9 + 7)C(3 + 2)
n(s) = 16C5
n(s) = 16!/(16 - 5)!5!
n(s) = 16!/11!5!
n(s) = 4368
Banyak cara memilih 2 wanita dari 7 wanita adlah ...
= 7C2
= 7!/(7 - 2)!2!
= 7!/5!2!
= 21
Maka...
P = n(k)/n(s)
P = (84 x 21)/4368
P = 21/52
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