Well, if you get a heavy version of each of these, then it's going to be 17 plus five, so this has to be less than 22 ounces, and it's going to be greater than or equal to, well, what's the lightest possible scenario? Well, you could get a 15-ouncer here and a three-ouncer here, and it is 18 ounces. And so notice, now the variation for the sum is larger. We have a range that this thing can take on now of four, while the range for each of these was just two. Or another way you could think about it is these upper and lower ends of the range are further from the mean than these upper and lower ends of the range were from their respective means. So hopefully this gives you an intuition for why this makes sense. But let me ask you another question.