 Hi, this is Dr. Don. I have a problem in chapter 9 about correlation. And in it, you're asked to calculate the correlation coefficient R after you make a scatter plot and then make a conclusion. Now, there is a tool in StatCrunch to give you the correlation coefficient R, but for a problem like this, there's a faster way to do it. Let's open up the data in StatCrunch. We just need to go to Stat, Regression, Simple Linear, and I'm going to select my x variable, which they say is age, and my y variable, the response variable, which is a capillary size. I'm going to leave everything here, there, but I'm going to make sure I select the fitted line plot and click Compute. And so we get our answers here. We get our correlation coefficient, in this case 0.9819, which would round to 0.982 for just three decimal places. And we also get our scatter plot that shows the line goes up and to the right, which would be a strong positive correlation.