Question

Find the probability of rolling a 7 when you toss two Fair six-sided Dice and add the results from each side?

Answer 1

`1/6`

Explanation:

First of all, you have to think of all the pairs of numbers that when added together equals to 7

ie
1,6
2,5
3,4
4,3
5,2
6,1

Looking at the first case which is 1,6
You have `1/6` chances of rolling a 1 and also `1/6` chances of rolling a 6. Therefore your first case has a probability of `1/6*1/6=1/36` chance of happening

Looking at the second case which is 2,5
You will realise that you also have `1/36` chance of the second case happening

Therefore, the answer is `1/36*6=1/6`