Well, how many total outcomes are there? How many possible rolls could we get? Well, you could get 1, 2, 3, 4, 5, 6. And how many of them satisfy these conditions, that it's an even number? Well, it could be a 2, it could be a 4, or it could be a 6. So the probability is the events that match what you need, your condition for right here. So three of the possible events are an even roll.