HP 32SII - Manual (Page 149)

Statistical Operations 11–1
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
11
Statistical Operations
The statistics menus in the HP 32SII provide functions to statistically analyze a
set of one– or two–variable data:
Mean, sample and population standard deviations.
Linear regression and linear estimation (
xˆ
and
yˆ
).
Weighted mean (x weighted by y).
A Summation statistics: n, Σ x, Σ y, Σ x 2 , Σ y 2 , and Σ xy.
L.R.
x y r m b
x y x w
x , y
n x y x y xy 2 2
sx sy x y σ σ
s , σ
SUMS
Entering Statistical Data
One– and two–variable statistical data are entered (or deleted) in similar
fashion using the
6 (or z 4 ) key. Data values are accumulated as
summation statistics in six statistic's registers (28 through 33), whose names
are displayed ire the SUMS menu. (Press
{ 5 and see Qº¸º  ¸  º¸ .
Note Always clear the statistics registers before entering a new set of
statistical data (press
z b { Σ } ).