HP 35s User Manual

Statistical Operations 12-1
12
Statistical Operations
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.
Entering Statistical Data
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    



).
Note
Always clear the statistics registers before entering a new set of
statistical data (press
 ()).
x
ˆ
y
ˆ

HP 35s Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Black
Digits	14 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157.9 x 18 x 82 mm