What is the probability of rolling a number greater than or equal to 8 with the sum of two dice, given that at least one of the dice must show a 6?

1 Answer
Write your answer here...
Start with a one sentence answer
Then teach the underlying concepts
Don't copy without citing sources


Write a one sentence answer...



Explain in detail...


I want someone to double check my answer

Describe your changes (optional) 200

Jun 20, 2016




I'm going to solve this in this way - we know that there are #6*6=36# different results we can get from rolling 2 dice, so in this probability fraction, 36 is the denominator.

We're constrained that one die must be a 6 and the total must be equal to or greater than 8.

When die A is 6, die B can be 2-6 but can't be 1, so we have 5 acceptable results.

When die B is 6, die A can be 2-6 but can't be 1, so we have 5 more acceptable results.

Now note that we've just double counted the (6,6) result, so we take away 1 good result, and end up with 9 and a total probability of


Was this helpful? Let the contributor know!
Trending questions
Impact of this question
6528 views around the world
You can reuse this answer
Creative Commons License