The probability of getting a sum of 5 from two throws of a dice is 1/9 or approximately 0.11. There are four possible outcomes that result in a sum of 5: (1, 4), (2, 3), (3, 2), and (4, 1) out of a total of 36 possible outcomes. Therefore, the probability of getting a sum of 5 is 4/36 or 1/9.