Question

Dua buah dadu di lempar bersama-sama satu kali. berapakah peluang muncul
a. mata dadu berjumah 5
b. kedua mata dadu bilangan genap
c.mata dadu berjumllah kurang dari4

Answer 1

Ruang sampel
n(s) = 36

jawaban soal A
a = { (1,4) (4,1) (2,3) (3,2) }
n(A) = 4
peluang
p(A) = 4/36
         = 1/9

jawaban soal B
a = {(2,2) (24) (2,6)
n(A) = 3 x 3
         = 9
peuang
p(A) = 9/36
         = 1/4

jawaban soal C
a = { (1,1) (1,2) (2,1) }
n(a) = 3
peluang
p(A) = 3/36
         = 1/12

Answer 2

A. p (5) 2 / 12 = 1 / 6
b. p (genap) 6 / 12 = 1 / 2
c. p (<4) 6 / 12 = 1 / 2