Casio fx-50F PLUS Manual de usuario descargar pdf (Pagina 46)

E-45

(S-VAR)

(VAR)

Obtains the population standard deviation

of the sample

-data.

–1

(S-VAR)

(VAR)

Obtains the sample standard deviation of

the sample

-data.

σn–1

n – 1

Σ (y

– y)

σn

Σ (y

– y)

σn

Σ (y

– y)

Regression Coefﬁ cient and Estimated Value Commands for Non-

quadratic Regression (VAR Menu)

The calculation that is performed when one of these commands is performed depends on

the regression type that is currently selected. For details about each regression calculation

formula, see “Regression Coefﬁ cient and Estimated Value Calculation Formula Table” (page

47).

(S-VAR)

(VAR)

Obtains constant term a of the regression formula.

(S-VAR)

(VAR)

Obtains coefﬁ cient b of the regression formula.

(S-VAR)

(VAR)

Obtains correlation coefﬁ cient r.

ˆ x

(S-VAR)

(VAR)

Taking the value input immediately before this command as the

-value, obtains the

estimated value of

based on the regression formula for the currently selected regression

calculation.

ˆ y

(S-VAR)

(VAR)

Taking the value input immediately before this command as the

-value, obtains the

estimated value of

based on the regression formula for the currently selected regression

calculation.

–1

(S-VAR)

(VAR)

Obtains the sample standard deviation of

the sample

-data.

σn–1

n – 1

Σ(x

– o)

¯ y

(S-VAR)

(VAR)

Obtains the mean of the sample

-data.

Σy

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