The quadratic regression option finds the equation of the form y = ax

The data shown here is the points {(2,11.4), (3,17), (5,27.3), (7,36.1), (11,47.7), (13,49.9)}.

Press to view the statistics calculation options.

Press for regressions, then to select quadratic.

Therefore, the best-fit quadratic equation for this data is approximately y = -0.23x

If an error message occurs, make sure the data was entered correctly or press to view the setup.

Use , , and the menu keys to select

`List1`

for `2Var XList`

,
`List2`

for `2Var YList`

,
and `1`

for `2Var Freq`

.