The Quick Statistical Reference (QSR) tool allows you to easily calculate many common statistical values (e.g., median ranks and chi-squared values) and interpolate (or extrapolate) values using the polynomial interpolation function.
To open the QSR, choose Home > ReliaSoft > Quick Tools > Quick Statistical Reference.
The Function Option page of the QSR is for calculating statistical values. The Interpolation page is for interpolating (or extrapolating) values using the polynomial interpolation function.