Question

Empat keping koin dilembungkan 128 kali. Frekuensi harapan muncul sedikitnya 3 gambar adalah.....

Answer 1

Verified answer

Jawab

4keping uang logam
n(S)= 2^4 = 16
(A+G)^4 = 1 (AAAA) + 4(AAAG)+ 6(AAGG) + 4(AGGG) + 1(GGGG)
n(3Gdan1 A) = 4
P= 4/16 = 1/6
fh = 1/4 x 128 = 32