Statistical Expressions - Canon F-73 Instructions Manual

and
of line (y=a+bx) and
correlation coefficient (r) from the sales
amount taJole the last 5 years.
Then estimate the year in which the
sales amount will reach i 00 million dol-
lars.
*
The sales amounts are entered in common loga-
rithm.
52
Operation
~~[ill
log SUM
I
Dill
@Q)
I
log SUM
aoJ
(ill)
log SUM
CI!D
(gQ)
log SUM
OlD(§)
log SUM
Dill
(ill)
llilf '
CJGJ
lml a
CJCD
lml b
CJQD
Display
0
0.
0.0000
1. 0000
2.0000
3.0000
4.0000
5.0000
Explanation
Specifies two-variable
statistical mode
Clears
lhe
storage
memory
Specifies decimal
point selection at 4
digits.
Entry ol variables
0 9373
-212.28381
a
o
.1
oso
1
b
1984.8257
In "1984, the sales
amount
will
reach
100 million dollars.
SUI1l
oi variables (x)
So,uare sum of
variables (x)
i·J
umber of variables
Mean value
ol
variables (x)
s;;;:,a;:;:;;nda=rd d:;:;ev=iatio;::-n
~~~~-~===-----­
S8mp!e of variables
(;:)
Standard deviation
Population parameter
ol· variables (x)
I
s-,-,C-0
-oi_v_a-ri-ab-1-es-(y-)- l~lill
2:
lJ
I ,.
v
CJQD
~.
Squaresumof !Wld
Zl!J"
I "
' " ' " "' r i""a' " -bl::::e:;_s_,lyccl _ _ _ _
f-_eco='o.::Gb :' : :
v"
MeE!!l value of
~
I
~
v
. bl I)
I
v=~~-~
vana es y .
Standard deviation
I
semple of variables
1~11 y~o-•
12:
\'2 _ (
I_v
12
(y) CJCD , -
n
S\andard
deviation
j
----;;=..-1---
Po~Ju!ation parameter
o·i
variables (y)
Sum of product of
variables lx,
y)
lniercepl(a) of
regression line
Ciradien! (b) of
m:Jression line
Correlation
coar-ficient (r)
E.stimate (x)
yon
GJ
1&' 1 1
a
CJCD
!
'
2_~
~Y n
- - - - - -
,; il
n· :Sxv- =:x· :Zv
n · 2:_~L ( 2:x) 2
n·"'·o- "r· >v
vln·Zx 2
6~J 2 i·l~·~>-(Zy)'l
Y-a
x=-b-
Eslimate (y)
I.Y=a+bx
53