If you roll a fair six-sided die and a fair four-sided die, what is the probability that the dice add to 6 of higher

Question

I don't know how to do this problem. Can you help me?

Thanks

Answer 1

The easiest (but certainly not the most elegant) way to do this is to write out the sample space as a 6 x 4 matrix and then count the points which satisfy your problem.  I get 15/24 = 5/8.