Homework Statement
4 dice are rolled. Find probability that sum is 20.
Homework Equations
If a dice is rolled the outcome can be 1, 2, 3, 4, 5, 6
The Attempt at a Solution
Well the combinations for sum to be 20 are:
5, 5, 5, 5 = 20
5, 5, 6, 4 = 20
6, 6, 5, 3 = 20
6, 6, 4, 4 = 20
6, 6, 6...