 Hi, this is Don, and I want to show you a quick way to get the regression equation for some data. This is a problem at MyStatLab. We want to click on this icon to see the data that we want to plot. We've got our x-value, which is a length, and a y-value, which is a girth. And this is talking about harbor seals. I guess that's the length of the seal and the waistline of the seal. Okay, we want to get this, we're going to do it in Excel. I want to open in Excel. Okay, here's Excel. I want to enable editing so that I can work with this. And we've got our x-values and our y-values. And you can get the regression line very quickly just by inserting a chart. I'm going to insert on the ribbon. I'm going to click on recommend in charge just to get them to come up. And it's given us a scatter diagram, so I'm going to click OK. And I'm going to make this a little bit bigger. We have our data here and our axes are off, but we can get what we need very quickly. If we click inside the chart area and then click on the plus, we can just click on add a trend line, which it did. And then see the little triangle there? We click on that and we go down to more options. And down at the bottom here, we can get it to display the equation that we're looking for and the r-square value, which we will use later on. In this case, I'm going to close that up. And there is our equation that we needed, y equals 0.722, which is the m-value, y equal mx plus b. b is 5.87, which is our intercept with an r-square of 0.859, which shows there's a high correlation in this data. So I hope that helps.