Press to view the statistics calculation options.

Press the menu key associated with the option. Press to view more options. Press to select one-variable statistics.

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

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

Press to select
exponential regression which finds the best-fit
exponential equation of the form y = ab^{x}.

Press to select
power regression which finds the best-fit
power equation of the form y = ax^{b}.

Press to select
quadratic regression which finds the best-fit
quadratic equation of the form y = ax^{2} + bx + c.

Press to select
cubic regression which finds the best-fit
cubic equation of the form y = ax^{3} + bx^{2} + cx + d.

Press to select
quartic regression which finds the best-fit
quartic equation of the form y = ax^{4} + bx^{3} + cx^{2} + dx + e.

Press to select Store Regression which lets you store the current regression into equation, such as y1.