15) 15) A single die is rolled twice. The set of 36 equally likely outcomes is {(1, 1), (1, 2), (1,3), (1.
4), (1,5), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2,5), (2, 6), (3, 1), (3, 2), (3, 3), (3, 4), (3,5), (3,6), (4,
1), (4,2), (4,3), (4,4),(4,5), (4, 6), (5, 1), (5,2), (5,3), (5, 4), (5,5), (5,6), (6, 1), (6,2), (6,3), (6,
4), (6,5), (6, 6)). Find the probability of getting two numbers whose sum is greater than 9
and less than 13.