Suppose that we roll two fair 6-sided dice. What is the probability that the two numbers rolled sum to 4?

1 Answer

1/12

Explanation:

Favorable outcomes/results to get a sum of 4 when fair dices are tossed are

(1, 3), (2, 2), (3, 1)

While, the total outcomes of two fair dices =6\times6=36

hence, the probability to get a sum of 4

=\frac{\text{favorable outcomes}}{\text{total outcomes}}

=\frac{3}{36}

=1/12