Concept used: Probability = n(e)/n(s) where n(e) = number of outcomes favourable to e n(s) = number of possible outcomes P = probability Calculation: Two dice are rolled n(s) = 6 × 6 = 36 The sum is 6, n(e) = (1, 5), (2, 4), (3, 3), (4, 2), (5, 1) n(e) = 5 ∴ Probability is n(e)/n(s) is 5/36