So the mean of this new distribution right over here is going to be the same thing as it's going to be the mean of our sample mean minus the mean of our sample mean of y. And this might seem a little abstract in this video. In the next video, we're actually going to do this with concrete numbers. And hopefully, it'll make a little bit more sense. Just so you know where we're going with this, the point of this is so that we can eventually do some inferential statistics about differences of means. How likely is a difference of means of two samples, random chance or not random chance? Or what is a confidence interval of the difference of means?