HP (Hewlett-Packard) 35s ユーザーズマニュアル

The statistics menus in the HP 35s provide functions to statistically analyze a set of 
one– or two–variable data(real numbers):

Mean, sample and population standard deviations.

Linear regression and linear estimation (

 and 

).

Weighted mean (x weighted by y).

Summation statistics: n, 

Σx, Σy, Σx

2

, 

Σy

2

, and 

Σxy. 

One– and two–variable statistical data are entered (or deleted) in similar fashion 
using the 



 (or 



 ) key. Data values are accumulated as summation 

statistics in six statistics registers (-27 through -32), whose names are displayed in 
the SUMS menu. (Press 



 and see    



 



 ).

Always clear the statistics registers before entering a new set of 
statistical data (press 





 ()).

xˆ

yˆ