HP 10BII Benutzerhandbuch Seite 150

Statistik
σx
150 B: Weitere Hinweise zur Rechenweise des HP 10BII
∑
= -------
Sx =
Sy =
(
∑

∑
– --------------
= ------------------------------ -
r = --------------------------------------------------------------------------- -

2
∑
x –

∑
m = ------------------------------- -
b = y mx –
∑
y
y = ------ -
Z
( ) 2
∑

∑
– --------------
------------------------------ -
–
2
( )
∑
y

∑
y – ------------- -
----------------------------- -
–
) 2
∑
σy
= ----------------------------- -
∑ ∑
x y
∑
xy – -------------- -
n
( ) 2
∑
x  
2
∑
------------- - y
 
n
∑ ∑
x y
xy – -------------- -
n
( ) 2
∑
x
2
∑
x – ------------- -
n
y b –
x ˆ y ˆ
= ---------- -
m
∑
= --------- -
∑
( ) 2
∑
y

y – ------------- -
( ) 2
∑
y 
– ------------- -

n
= mx + b