On a Fair Number Cube, the numbered faces 1 through 6 have an equal likelihood of being rolled -- in other words each number has a 1/6 chance of being rolled. The likelihood then of rolling EITHER a 1 OR a 4 is the same: 1/6 Hope that helps.

On a Fair Number Cube, the numbered faces 1 through 6 have an equal likelihood of being rolled -- in other words each number has a 1/6 chance of being rolled. The likelihood then of rolling any of the three even numbers is 3/6 (or 1/2). Hope that helps.