![]() ![]() Y= and enter in the equation from Step 4: Step 5: If you would like to plot the line on the scatterplot, press Therefore, the equation of the line is y=267.4x 2939.55. To the calculator, a is the slope and b is still the y−intercept. L1 is 2nd 1, L2 is 2nd 2 and the comma is the button above the 7. Step 3: You will be taken back to the main screen. Step 2: Select 4:LinReg(ax b). Press ENTER. Step 1: After completing steps 1-5 above (to make the list), press STAT and then arrow over to the CALC menu. To find the equation of best fit: (In the TI 83/84, it is also called Linear Regression, or LinReg) Now you can find the equation of best fit for the data, with a graphing calculator. Your plot should look something like this. If this is the case, press ZOOM and scroll down to 9:ZoomStat. To change these, scroll down to Xlist (for example), and press 2nd 1 (L1). 2nd 2 is L2. Make sure the Xlist is L1 and the Ylist is L2. Then, select the first option for the Type of stat plot. Turn Plot1 on by highlighting On and pressing ENTER. To do this, arrow down to the equation and press CLEAR. Step 7: Clear any equations that are in the Y=. Your screen should look something like this when you are done. Then, repeat with L2 and the total home run numbers. Enter all the entries into L1 (years) first and press enter between each entry. Step 4: Now, enter the data into the lists. To do this, arrow up to L1 so that it is highlighted (black). ![]() If there are any current lists, you will need to clear them. Step 2: In EDIT, select 1:Edit…. Press ENTER. The x−values will be List1, or L1 and the y−values will be List2, or L2. In the graphing calculator, you will need to enter each ordered pair as an x−value and a y−value. Recall that an ordered pair is a point, (1990, 3317), for example. Let's make a scatterplot using a graphing calculator. \)īelow is a table for the total number of home runs hit from 1990-2000. ![]()
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