Question

find the probability that you will get a "sum" of 5 or greater in rolling two dice experiment.

How do you do this?

Answer 1

There are 36 total possibilities in rolling two dice. you are looking to get 5, 6, 7, 8, 9, 10, 11, or 12. Rather than looking for all of these, do the reverse 2, 3 or 4, and subtract from 36.

1,1
2,1
1,2
2,2