The question asks for the probability of rolling the same number on both dice, using the provided grid of all possible outcomes.

Step-by-Step Solution:

1. Count Total Possible Outcomes:
   The grid shows $6 \times 6 = 36$ total possible outcomes (since each die has 6 sides).

2. Count Favorable Outcomes:
   Rolling the same number on both dice corresponds to the diagonal entries where $(1,1), (2,2), (3,3), (4,4), (5,5), (6,6)$.
   There are 6 favorable outcomes.

3. Calculate the Probability:
   Probability $= \frac{\text{Number of Favorable Outcomes}}{\text{Total Outcomes}}$.
   Thus, $\frac{6}{36} = \frac{1}{6}$.

Final Answer:

The probability of rolling the same number on both dice is $\frac{1}{6}$.

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Related Questions:

1. What is the probability of rolling a sum of 7 with two dice?
2. How many outcomes result in a sum less than 5?
3. What is the probability of rolling at least one "1" with two dice?
4. How many outcomes result in a product of the two dice being 12?
5. What is the probability of rolling two numbers such that their difference is 2?

Tip:

To solve probability problems with dice, identify favorable outcomes visually from the grid to simplify calculations.