HP F1902-90001 manual Statistics, Σx =

Statistics

[

=

∑ [



=

∑ y 

Z

∑ [\

[

=

Q

∑

[

Q￿

(∑ [)2

∑ \

– ---

----Q-------

Sx =

---------

-Q----–-----

-----------

∑ y

￿

(∑ y )2

￿

– ---

---Q-------

Sy =

-----------------------------

∑ [

￿

–

(∑ [)2

Q – 

∑ y

–

(∑ y)2

-----

--Q-------

------

Q-------

σx =

=



Q---------------

--------------

Q---------------

∑ xy –

-∑----x---∑-----y-

r =

n

∑-----x---)--2------------------------

(--∑-----y---)--2---



∑ x

2

(



– ---

---n-------

 

n----

---

∑ xy –

-∑-----x--∑-----y-

m =

n

--(---∑-----x--)---2-

∑ x

2

–

------

n-------

ˆ

=

y – b

ˆ

b = y – mx x

----------

y = mx + b

m

B: More About Calculations 135