If 3 dice are rolled at the same time, what is the probability of all 3 dice showing even face
values? (i.e. all 3 dice showing 2, 4, or 6)

Total possible outcomes of 3 dice = 6 x 6 x 6 = 216Total number of ways for all 3 to show even numbers:222224226242244246262264266..etc.    There 27 of them.Probability = 27 / 216 = 1/8 = 12.5 percent .