Casio FX-100D Guía de usuario descargar pdf (Pagina 23)

E-22

Calculating Estimated Values

Based on the regression formula obtained by paired-variable statistical

calculation, the estimated value of

y can be calculated for a given x -value.

The corresponding

x -value (two values, x

and x

, in the case of quadratic

regression) also can be calculated for a value of

y in the regression

formula.

To determine the estimate value for y when x = 160 in the

regression formula produced by logarithmic regression of the data

. Specify Fix 3 for the result. (Perform the following operation

after completing the operations in

A 160 11(STAT) 5(Reg) 5( n) =

Result: 8106.898

Important: Regression coefficient, correlation coefficient, and estimated

value calculations can take considerable time when there are a large number

of data items.

Performing Normal Distribution Calculations

While single-variable statistical calculation is selected, you can perform

normal distribution calculation using the functions shown below from

the menu that appears when you perform the following key operation:

11(STAT) 5(Distr).

P, Q, R: These functions take the argument

t and determine a probability of

standard normal distribution as illustrated below.

t : This function is preceded by the argument X, and determines the

normalized variate .

For the single variable data {

; freq

} = {0;1, 1;2, 2;1, 3;2, 4;2, 5;2,

6;3, 7;4, 9;2, 10;1}, to determine the normalized variate ( 't ) when x

= 3, and P( t ) at that point up to three decimal places (Fix 3).

1N(SETUP) c4(STAT) 1(ON)

1N(SETUP) 6(Fix) 3N3(STAT) 1(1-VAR)

0 = 1 = 2 = 3 = 4 = 5 = 6 = 7 = 9 =

10 =ce1 =2 =1 =2 =2 =2 =3 =

4 = 2 = 1 =

A 3 11(STAT) 5(Distr) 4( 't ) =

(t)Q

(t)R

(t)

0 t 0 t 0 t

(t)Q

(t)R

(t)

0 t 0 t 0 t

STAT

FIX

STAT

FIX

STAT

FIX

STAT

FIX

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Casio FX-100D Guía de usuario Pagina 23

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