HP 48G Linear Regression Best Fit Line

[MNH]

(12-19-2021 01:08 AM)Rodger Rosenbaum Wrote:  After you enter the data into ΣDAT you need to get into the statistics menu and execute the "Fit data" function (it's the 3rd function in the list). Doing this will fill in all the summary statistics such as ΣX, ΣY, ΣXY, etc. Without doing this the LR function, and the ORTH program won't work.

How can I store my own data into the summary statistics variables?