Well, the mean, you take the sum of all these numbers and then you divide by four. And then you take the sum of all these numbers and divide by four. So which sum is going to be higher? Well, the first three numbers are the same, but in the second list, you have a higher number, 290. 290 is higher than 250. So if you take these four and divide by four, you're going to have a larger value than if you take these four and divide by four because their sum is going to be larger. And so the mean is going to go up.