Question

Matematika tentang peluang tolong
Tiga dadu dilempar bersama-sama sebanyak 432 kali Tentukan harapan munculnya jumlah mata ketiga dadu adalah 9

Answer 1

Verified answer

Frekuensi Harapan

3 buah dadu
n(s)=  6^3 = 216
A = jumlah mata dadu 9
muncul (1,2,6)  = 3! = 6
muncul  (1,3,5) = 3! = 6
muncul (1,4, 4) = 2! = 2
muncul (2,2,5) = 2! = 2
muncul (2,3,4)) = 3! = 6
muncul (3,3,3) = 1! =1 
n(A) = 3(6)+ 2(1)+ 1 = 21

fh = n(A) / n(S)  x 432 = 21/216 x 432=  42