So, you want to make a scatterplot…Step 1: Click on the “STAT” button, and choose “Edit…” to input your data into your lists.

Step 2: Click “2nd" and “Y=” to open up your stat plots.

Turning the plot on should automatically select the first “Type” as Scatter plot. Otherwise, change the type to the one highlighted in the picture above.

Step 3: Click “ZOOM” and select “ZoomStat.” This should provide you a nice view of your scatter plot as long as no

other plots are on.

So, you want to create a Linear Regression…Step 1: Click on the “STAT” button, and choose “Edit…” to input your data into your lists.

Step 2: Click again on the “STAT” button, move to the “CALC” column, and select either #4: LinReg(ax+b) or #8: LinReg(a+bx)

Note: these are equivalent, however often times in statistics we see #8: LinReg(a+bx) utilized. So long as you know what your slope is, and what your y-intercept is, you should be fine. However, expect that when you come to an AP Statistics test, they are more than likely using a+bx.

Now, here’s the part that trips most people up…Your calculator is only as good as you make it. We can choose the lists we

draw our data from. This is typically L1 and L2, but we may quickly choose by utilizing the “2nd” button followed by the numbers 1-6. If you look above each number, you’ll see a different list is assigned to it.

The slightly more complex part is adding in the Y1. Click the “VARS” button, move to the “Y-VARS” column, select “Function…”, and select whichever equation you would like your regression line to be stored in. Typically, this is Y1, but you may wish to choose a different one if you are generating multiple equations.

Lastly, you will want to be able to view your correlation coefficient (r), and your coefficient of determination (r2).To do this, go into the catalog by clicking “2nd” followed by “0” zero. This brings up the catalog, and in it you need to select DiagnosticOn. This will allow you to see the coefficients when utilizing LinReg.

Make sure to click “Enter” so that the word “Done” appears. Otherwise, your LinReg will still not show the coefficients.