A single die is rolled twice. The 36 equally-likely outcomes are shown to the right.

Find the probability of getting two numbers whose sum is 7.

A table represents first roll and second roll combinations. The combinations are given

123456

11, 11, 21, 31, 41, 51, 6

22, 12, 22, 32, 42, 52, 6

33, 13, 23, 33, 43, 53, 6

44, 14, 24, 34, 44, 54, 6

55, 15, 25, 35, 45, 55, 6

66, 16, 26, 36, 46, 56, 6