You roll four fair dice. What is the probability that the sum of the rolls is 6?
1113 , 1122 , 1131 , 1212 , 1221 , 1311 , 2112 , 2121 , 2211 , 3111 , Total = 10
Probability = 10 / 6^4 = 10 / 1296 =5 / 648 =0.7716%
