dua dadu dilempar bersaman,aka peluang munculnya mata dadu berjumlah 7 atau berjumlah 9 adalah... a. 5/36 b. 1/6 c. 4/9 d. 5/18 e. 1/4

D.5/18 ..............

A = munculnya Mata dadu berjumlah 7
A = {(1,6),(2,5),(4,3),(3,4),(5,2),(6,1)}
n(A) = 6
n(s) = 36
P(A) = n(A)/n(s)
P(A) = 6/36 = 1/6

B = munculnya Mata dadu berjumlah 9
B = {(6,3),(3,6),(5,4),(4,5)}
n(B) = 4
n(s) = 36
P(B) = n(B)/n(s)
P(B) = 4/36

P(A U B) = P(A) + P(B)
= 6/36 + 4/36
= 5/18