Hi
Note: when rolling a single die there are 6 possible outcomes.
1,2,3,4,5,6
P(rolling a 5)for example = 1/6
As out of the 6 possible outcomes, 1 of those is a five
P(1 then 2 then 3) = 1/6*1/6*1/6 OR (1/6)^3 = .0046
P(three 1s) = 1/6*1/6*1/6 OR (1/6)^3 = .0046