Four standard six-sided dice are to be rolled. What is the probability that the product of the numbers on the top faces will be 6? Express your answer as a common fraction.
1116==4! / 3!==4 permutations 1123==4! / 2! ==12 permutations
The probability is: [4 + 12] / 6^4 ==16 / 1296==1 / 81
