Roll a dice twice. What’s the probability that the sum of the two dice equals 5

To calculate the probability that the sum of the two dice equals 5, we need to find the number of successful outcomes and divide it by the total number of possible outcomes.

The successful outcomes are when the sum of the two dice is 5, which can occur in the following combinations:
(1, 4), (2, 3), (3, 2), (4, 1) => 4 successful outcomes

The total number of possible outcomes when rolling two dice is 6 x 6 = 36.

Therefore, the probability of the sum of two dice equaling 5 is 4/36, which can be simplified to 1/9.