•Always start data input with AB1(Scl) =to clear statistical memory.

•Input data using the key sequence shown below. <x-data> P <y-data> S

•The values produced by a regression calculation depend on the values input, and results can be recalled using the key operations shown in the table below.

To recall this type of value:

Perform this key operation:

Σx2

AU1

Σx

AU2

n

AU3

Σy2

AUr 1

Σy

AUr 2

Σxy

AUr 3

o

AX1

xσn

AX2

xσn-1

AX3

p

AXr 1

yσn

AXr 2

yσn-1

AXr 3

Regression coefficient A

AXr r1

Regression coefficient B

AXr r2

 

 

Regression calculation other than quadratic regression

Correlation coefficient r

AXr r3

m

AXr rr 1

n

AXr rr 2

 

 

•The following table shows the key operations you should use to recall results in the case of quadratic regression.

To recall this type of value:

Perform this key operation:

Σx3

AUr r1

Σx2y

AUr r2

Σx4

AUr r3

Regression coefficient C

AXr r3

m1

AXr rr 1

m2

AXr rr 2

n

AXr rr 3

 

 

29