Question

Jika tiga mata uang ditos bersama sama. Tentukan peluang yang muncul tepat dua angka

Answer 1

Ruang sampel :

(A, A, A) = 1
(A, A, G)(A, G, A)(G, A, A) = 3
(A, G, G)(G, A, G)(G, G, A) = 3
(G, G, G) = 1

= 1 + 3 + 3 + 1
= 8

tepat dua angka = (A, A, G)(A, G, A)(G, A, A)
= 3

peluang = 3/8

Answer 2

N(s) = 8
n(a) = { (AAG) (GAA) (AGA)
       = 3
peluang
p (A) = 3 /8