Press to choose the statistics application.

Press to select one-variable statistics. Choose

`fit data...`

and press
for regressions.If fitting data press to view the statistics calculation options.

Use and and press to select the option.

Linear regression which finds the best-fit linear equation of the form y = ax + b.

Logarithmic regression which finds the best-fit logarithmic equation of the form y = a + b ln x.

Exponential regression which finds the best-fit exponential equation of the form y = ae

Power regression which finds the best-fit power equation of the form y = ax

Best Fit which finds the best option among the four above based on the correlation coefficients.