Dua buah 🎲 dilambungkan gotong royong sekali.
Pembahasan:
n(S) = 36
A = berjumlah prima
= (1, 1), (1, 2), (1, 4), (1, 6), (2, 1), (2, 3),
(2, 5), (3, 2), (3, 4), (4, 1), (4, 3), (5, 2),
(5, 6), (6, 1), (6, 5)
n(A) = 15
P(A) = n(A) = 15 = 5
n(S) 36 12