Casio FX-820MS User Manual

Page 27

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E-25

• Always start data input with

A

B

1

(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:

Σx

2

A

U

1

Σx

A

U

2

n

A

U

3

Σy

2

A

U

r

1

Σy

A

U

r

2

Σxy

A

U

r

3

o

A

X

1

x

σ

n

A

X

2

x

σ

n

-1

A

X

3

p

A

X

r

1

y

σ

n

A

X

r

2

y

σ

n

-1

A

X

r

3

Regression coefficient A

A

X

r

r

1

Regression coefficient B

A

X

r

r

2

Regression calculation other than quadratic regression

Correlation coefficient

r

A

X

r

r

3

m

A

X

r

r

r

1

n

A

X

r

r

r

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:

Σx

3

A

U

r

r

1

Σx

2

y

A

U

r

r

2

Σx

4

A

U

r

r

3

Regression coefficient C

A

X

r

r

3

m

1

A

X

r

r

r

1

m

2

A

X

r

r

r

2

n

A

X

r

r

r

3

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