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Results: Linear Regression Correlation Coefficient: 0.923
Linear Regression Formula:
Calculating Estimated Values
Based on the regression formula obtained by paired-variable statistical
calculation, the estimated value of
The corresponding
regression formula.
To determine the estimate value for
4 4
regression formula produced by Linear regression of the data
in
. Specify Fix 3 for the result. (Perform the following operation
3
after completing the operations in
160
Result: 7253.444
Important: Regression coefficient, correlation coefficient, and estimated
value calculations can take considerable time when there are a large number
of data items.
Equation Calculations (EQN)
You can use the following procedure in the EQN Mode to solve simultaneous
linear equations with two or three unknowns.
1. Press
2. On the menu that appears, select an equation type.
To select this calculation type:
Simultaneous linear equations with two
unknowns
Simultaneous linear equations with
three unknowns
3. Use the Coefficient Editor that appears to input coefficient values.
x
• To solve
then input the following for the coefficients (
b
c
= 3,
= 4) : 1
2
2
• To change a coefficient value you already have input, move the cursor
to the appropriate cell, input the new value, and then press
• Pressing
Important: The following operations are not supported by the Coefficient
Editor:
,
also cannot be input with the Coefficient Editor.
4. After all the values are the way you want, press
• This will display a solution. Each press of
solution. Pressing
the Coefficient Editor.
• You can scroll between the solutions using the
• To return to the Coefficient Editor while any solution is displayed, press
.
(STAT)
(STAT)
x
-value also can be calculated for a value of
(STAT)
(EQN) to enter the EQN Mode.
y
x
+ 2
= 3 ; 2
+ 3
2
will clear all of the coefficients to zero.
(M–),
while the final solution is displayed will return to
(Reg)
(A)
(Reg)
(B)
y
= 22.189
y
can be calculated for a given
y
3
(Reg)
( )
y
= 4, for example, press
3
2
3
(STO). Pol, Rec, ÷R and multi-statements
E-19
x
+ 3703.222
x
when
= 160 in the
.)
Press this key:
(a
X + b
Y = c
n
n
(a
X + b
Y + c
n
n
a
b
= 1,
= 2,
1
1
4
.
.
will display another
and
x
-value.
y
in the
)
n
Z = d
)
n
n
in step 2, and
c
a
= 3,
= 2,
1
2
.
keys.
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