TI Instructions: Linear Relationships

Correlation

Choose STAT/CALC/8:LinReg(a+bx).

You'll see: LinReg(a + bx)

Choose the Xlist and Ylist. Since the gestation data is in L1 and the longevity data is in L2, enter 2nd/1 after Xlist. Enter 2nd/2 after Ylist. Leave FreqList and Store RegEQ blank.

Highlight Calculate and press ENTER

Note: If you don't enter any lists, then L1,L2 is the default.

You should now see:

If you don't see r2 and r, you need to turn DiagnosticOn: Choose CATALOG (2ND/0) and then arrow down to choose DiagnosticOn (list is alphabetical). Hit ENTER and the screen will display Done. You will only have to do this once unless the TI memory gets reset.