Probability of Sum of Two Rolls Less than or Equal to 4

If a fair six-sided die is rolled twice, what is the probability that the sum of the two rolls is less than or equal to 4?

To calculate this, consider all possible outcomes when rolling the die twice. The total number of outcomes for two rolls of a die is $6 \times 6 = 36$. Now, identify the successful outcomes where the sum of the two rolls is 4 or less.