Casio CFX-9800G - Page 70

The‘unit uses the following-value memories td.store values. D6 not use these r memories
for-storage if you plan-to perform statisti¢al-operations. —-~ - ° - =s
Value
Memory’
P
Qf
oR
ea
im
Statistical Data Ly? Ly Exy Dx? ix | Scares
HLinear Regression
The linear.regression formula is defined-as y=A+Bx.
To input data for linear regression
Example 1] To input the data 10/20, 20/30, 20/30, 40/50
ary CH) FZ) (Scl) ES
10@3)(,)20(0T)
2063}(,)30F)(DT)FN(DT)
406)(,)50(F9(DT)
Exampie 2
To input the data,10/20; 20/30,.20/30, 20/30, 20/30, 20/30, 40/50.
10(3)(,)20(E1(DT)
2063)(,)30@WG)5R(DT)
403 (,)50(](0T)
Note ‘that you. can input multiple data pairs by entering the data, pressing. @@G), and
then entering the daa Of data pairs.
e To delete data
Example 1) Data input sequence: 10(F3)(,)40—R(DT)''"”-
_ 203)(,)200(DT)
30€3)(,)30E9(DT)
a 40(3)(,)50((0T)
To delete the 40! eI. ) 501 (DT) (last data pair entered), press acy
2 Se oe Be
Example 2 Data input ‘sequence: 40 F3){, ya0e(0T) eee
2063)(,)20(DT)
3063 (,)30E9(DT) ot
; ohne hes Eos v AOED(,)50 ue n> : a
To delete the 40(F3)(,)50, press &. : my
Fale
Example 3| Data input: sequence: '10[3)(,)40E1
3) (;) 201 ~
3}(,)30EH(DT)
2)(;) 50(F (DT) os
To delete the 20(F3)(,)20(F(DT), enter 20{F3}(,)20[F2)(CL).
ny
°
Fa
wo °
Fa
b o
Fa
—104—
i
i
i
I
|
if
i
i
Logarithmic Regression :
The logarithmic regression formula is defined as _y=A-+B-Inx. paeerio mee
®To input data for logarithmic regression :
Input data ‘using the'same procedures as described for linear regression on page 104.
© To delete data Fe
Delete data using the same procedures. as described: for linear regression on’ page 104.
The following shows the difference between linear regression results and logarithmic regres-
sion results.
Linear Regression | Logarithmic Regression
Dx Linx
Lx? L(inx)?
Uxy Uinxey
Linear Regression | Exponential Regression
Ly : i Liny
| Ly? _E(Iny)?
| Exy ExlIny
Exponential Regression
The exponential regression formula is defined as y= Ase (iny=InA+ Bx).
@To
input
data
‘for
exponential
regression
:
—_
Input
data
using
the
same
procedures
as
described
for
linear
regression
on
page
164.
@To delete data ens
Delete
data
using
the
same
procedures
as.described
for
linear
fegression
‘on
ipage
104.
The following-shows the difference between linear regression results and exponential
regression results.
—105—