Casio fx-570ES PLUS User Manual page 25

• See the table at the beginning of this section of the manual for the regression
formulas.
• , , and
1 2
an argument immediately before them. See "Calculating Estimated Values"
for more information.
Minimum Value: minX*, minY, Maximum Value: maxX*, maxY
(STAT)
Note: While single-variable statistical calculation is selected, you can input
the functions and commands for performing normal distribution calculation
from the menu that appears when you perform the following key operation:
(STAT)
for details.
To input the single-variable data
2 2
the FREQ column to specify the number of repeats for each items
x
({ n ; freq n } = {1;1, 2;2, 3;3, 4;2, 5;1}), and calculate the mean and
population standard deviation.
(SETUP)
Results: Mean: 3
To calculate the linear regression and logarithmic regression
3 3
correlation coefficients for the following paired-variable data and
determine the regression formula for the strongest correlation: (
= (20, 3150), (110, 7310), (200, 8800), (290, 9310). Specify Fix 3
(three decimal places) for results.
(SETUP)
(SETUP)
20
3150
Results: Linear Regression Correlation Coefficient: 0.923
Logarithmic Regression Correlation Coefficient: 0.998
Logarithmic Regression Formula:
are not variables. They are commands of the type that take
(MinMax)
(Distr). See "Performing Normal Distribution Calculations"
(STAT)
(STAT)
1 2 3
1
(STAT)
(STAT)
Population Standard Deviation: 1.154700538
(STAT)
(Fix)
(STAT)
110 200
7310
(STAT)
(STAT)
(STAT)
(STAT)
(STAT)
to
x
= {1, 2, 2, 3, 3, 3, 4, 4, 5}, using
(ON)
(1-VAR)
4 5
2 3 2
(Var) ( )
x n
(Var) ( )
(OFF)
(A+BX)
290
8800 9310
(Reg) (r)
(Type) (In X)
(Reg) (r)
(Reg) (A)
(Reg) (B)
y
E-24
STAT STAT
STAT STAT
= –3857.984 + 2357.532ln
x y
, )
FIX FIX
x