Casio STAT 2 Manual de usuario descargar pdf (Pagina 6)

Using your fx-82AU PLUS calculator for Linear Regression

For linear regression you have pairs of values, each pair consists of an X value and a Y

value. For this section you do not want the Stat Editor displaying a Freq column, so make

sure the FREQ display is turned off by pressing the following keys:

(to obtain the STAT options),

then press to turn the Frequency display OFF.

 Put your calculator into Linear Regression mode by pressing:

to enter STAT mode, then for Linear Regression (A+Bx)

The Stat Editor should display a column for the X values and a column for the corresponding

Y values.

 Enter each of the X values, then each of the Y values into the appropriate column.

 Once the data is entered, press to close the Stat Editor.

 Access regression information by pressing to access the STAT menu,

followed by the appropriate keys as required:

Keys to press

Meaning of Keys

constant,

5: Reg 1: A

gradient,

5: Reg 2: B

correlation coefficient,

5: Reg 3: r

X

3: Sum 1: X

X

3: Sum 2: X

Y

3: Sum 3: Y

Y

3: Sum 4: Y

XY

3: Sum 5: XY

 You can also find the predicted value of Y for a given X value:

eg to find the value of y when x = 10 you would use the sequence

MODE



SHIFT

MODE

SHIFT

1 2 3 4 5 6 7 8

Sin comentarios

Casio STAT 2 Manual de usuario Pagina 6