If you have 3 fair dice each numbered 1 to 6 what is the chance all three dice show even numbers?

Probability is 1/8 or 0.125 or 12.5%

Explanation:

A fair dice with six sides (numbers) has a probability of 1/2 of rolling an even number. Note: 1/2 = 3/6, where the dice has 3 even numbers out of six total sides.

The probability of three same dice all roll an even number is the probability of one of these (1/2) to the power 3, or (1/2) * (1/2) * (1/2) which equals 1/8.