Regression Instructions Please see if you do not see L1 L2 L3 in the STAT EDIT screen if you need to clear the lists or does not show To compute the regression equation only 1 Press STAT and enter You should see L1 L2 L3 in the top row and they should be clear Enter the x values in L1 and the y values in L2 2 Press STAT select CALC from the top row select the type of regression and enter To compute the regression equation and paste it to Y1 1 Press STAT and enter as in 1 above Put x s in L1 and y s in L2 2 Press STAT select CALC press 4 press VARS select YVARS and enter 3 times 3 To see the line with the data turn on Plot1 press Y cursor up and enter When Plot1 is highlighted it is on 4 Press ZOOM 9 Interpolation To find a y value for an x value between given data points Extrapolation When you want the y value on the regression line at an x value that is outside the range of the data To find a y value for a given x value do VARS select Y Vars select the Y you pasted to type x value for example Y1 25 If you do not see L1 L2 L3 in the STAT EDIT screen press STAT press 5 then enter twice This is the set up editor To clear a list cursor up to the name of the list L1 or L2 and press clear enter To see rsquared press 2nd 0 which puts you in the CATALOG Scroll down to Diagnostic On and enter twice
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