A fair six-sided die is rolled once. What is the probability of rolling a number greater than 4?

Step 1: List the possible outcomes.

A fair six-sided die has the outcomes:
1, 2, 3, 4, 5, 6

There are 6 equally likely outcomes.

Step 2: Identify the outcomes greater than 4.

The numbers greater than 4 are:
5 and 6

There are 2 favorable outcomes.

Step 3: Calculate the probability.

P(number greater than 4) = 2 / 6

Step 4: Simplify the fraction.

2 / 6 = 1 / 3

Therefore, the probability of rolling a number greater than 4 is 1/3.