And so this is going to give us, as it should have, 0.25 plus 0.75, which is equal to one. So the area under the entire density curve is one, which we need to be true for this to be a density curve. Now let's think about what percentage of that area is represented in blue right over here. Well, we could do the same thing. We could say, all right, this is a trapezoid. We wanna take the average of this side and this side and multiply it times the base. So this side is 0.5 high, 0.5, plus 0.75, 0.75 high, and we're gonna take the average of that, divided by two, times the base.