| 1. Enter lists |
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In OPS, SetLEdit sets up the List editor. |
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The xStat, yStat, and fStat lists are on screen. |
To clear a list, use the arrow keys to hilite
the name of the list, then press 
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| Now enter the data into the sStat and yStat
lists. To begin entering data into a list, hilite the first entry in the list (or the
dotted line in an empty list), type in the number, and press after each value. |
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| Enter a 1 into the fStat list for each entry
in the xStat list. |
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Exit the list editor |
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| 2. Do the linear regression |
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Go to the statistics operations. |
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Calculate the LinR (linear regression) line. Values of a,
b, corr (which is r), and n are now on screen. |
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| 3. Turn on the statistics plot. |
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Turn on Plot1 |
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Use a scatter plot |
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Xlist name is xStat |
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Ylist name is yStat |
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Use a mark |
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Return to home screen |
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| 4. Graph the data |
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Then put cursor on any equation present. |
| , more if
needed |
Clear all equations. |
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Graph the scatter plot using a zoom to fit the data. |
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| 5. Graph the linear regression line |
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Paste the statistics variable RegEq (the regression
equation) into y1. |
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Use the zoom data window to plot the regression line with
the data |
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| 6. Use the regression line to make predictions |
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Use the statistics forecast (FCST) function |
| Enter the x value where the prediction is to
be made |
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Put cursor on line where ‘y=' is and use the
solver to find the predicted y value. |
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| 7. Turn off the statistics plot |
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Turn off stat plot1 and return to home screen. |