Casio fx-570ES PLUS, fx-991ES PLUS Statistical Calculations (STAT), Inputting Data, Note:, Press this key:, To select this type of statistical calculation:



3 



Input an initial value for X (Here, input 1): 1 



7 



13 

Statistical Calculations (STAT)

To start a statistical calculation, perform the key operation (STAT) to enter the STAT Mode and then use the screen that appears to select the type of calculation you want to perform.

To select this type of statistical calculation:	Press this key:
(Regression formula shown in parentheses)
Single-variable (X)	(1-VAR)
Paired-variable (X, Y), linear regression ( y = A + Bx)	(A+BX)
Paired-variable (X, Y), quadratic regression	( _+CX2)
2
( y = A + Bx + Cx )
Paired-variable (X, Y), logarithmic regression	(ln X)
( y = A + Blnx)
Paired-variable (X, Y), e exponential regression	(e^X)
( y = AeBx)
Paired-variable (X, Y), ab exponential regression	(A•B^X)
( y = ABx)
Paired-variable (X, Y), power regression ( y = AxB)	(A•X^B)
Paired-variable (X, Y), inverse regression	(1/X)
( y = A + B/x)

Pressing any of the above keys (to ) displays the Stat Editor.

Note: When you want to change the calculation type after entering the STAT Mode, perform the key operation (STAT)(Type) to display the calculation type selection screen.

Inputting Data

Use the Stat Editor to input data. Perform the following key operation to display the Stat Editor: (STAT)(Data).

The Stat Editor provides 80 rows for data input when there is an X column only, 40 rows when there are X and FREQ columns or X and Y columns, or 26 rows when there are X, Y, and FREQ columns.

E-22