To find a linear regression, you must have a graphing calculator (Texas Instruments: TI-83/Plus, TI-84, etc.)
Step 1. Hit the
STAT button.
Step 2.
ClrList, to enter data, the lists must be clear.
Step 3. Hit the buttons
2nd,
1,
comma (located above the 7) ,
2nd,
2.
Step 4. Hit the
STAT button again.
Step 5.
Edit Now enter data into the L
1 and L
2.Step 6. Now, hit the
STAT button once more.
Step 7. Press the
Right Arrow key in the corner. This will lead you to CALC.
Step 8. Now press the
4 on the keyboard (LinReg ax+b)
Step 9. Hit the buttons
2nd,
1,
comma (located above the 7) ,
2nd,
2.
Step 10. Press the
enter button.
Your linear regression will be displayed on the screen as an ax+b (or mx+b) equation.