Hello, thank you for taking the time to post your question!
This one is asking for conditional probability so we’re going to be using the general equation form of P(A/B) = P(A and B) / P(B).
For this question, “A” would be that the sum is 7 and “B” would be that the sum is greater than 6.
Since two dice are being rolled, that means that there are 6 distinct ways to roll a sum of 7 … (1,6) (2,5) (3,4) (4,3) (5,2) (6,1)
And then out of the total possibility of 36 outcomes, 21 give a value where the sum is greater than 6
That means that the probability here would be 6/21 = 2/7
Hopefully that gets you moving in the right direction! Feel free to reach out if you have any questions beyond that :)
