So three of the possible events are an even roll. And it's out of a total of six possible events. So there is a 3 over 6, the same thing as 1 half probability of rolling even on each roll. Now, they want to roll even three times. And these are all going to be independent events. Every time you roll, it's not going to affect what happens in the next roll, despite what some gamblers might think. It has no impact on what happens on the next roll.