The correct answer to this question is: "1/2"
You are rolling a standard number cube with numbers from 1-6. There are 3 numbers that are more than or greater than 3. This means that the other half are lesser than 3.
P(number greater than 3) = 3 / 6 = 1 / 2
So the probability of getting a number greater than 3 is 1/2