Question

If you rolled two dice, what is the probability

that you would roll a sum of 8?
second
first.
1 2
3
4
5
6
1 1,1 1,2 1,3 1,4 1,5 1,6
2 2,1 2,2 2,3 2,4 2,5 2,6
3 3,1 3,2 3,3 3,4 3,5 3,6
4 4,1 4,2 4,3 4,4 4,5 4,6
5 5,1 5,2 5,3 5,4 5,5 5,6
6,1 6,2 6,3 6,4 6,5 6,6
6
[?]
Probability =
Desired Outcome
All Outcomes
Simplify your fraction, then enter the numerator.
Enter

Answer 1

• Desired outcome: 5
• All outcomes: 36
• Probability = 5/36

Explanation:

You want to know the probability of rolling two dice such that the sum is 8.

Outcomes

There are 6·6 = 36 possible outcomes. Of those, the 5 that result in a sum of 8 are (6, 2), (5, 3), (4, 4), (3, 5), (2, 6). Then we can say ...

Desired outcomes: 5

All outcomes: 36

Probability = 5/36

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