Casio fx-82ZA PLUS User Manual page 20

For single-variable statistical calculations, the variables marked with an
asterisk (*) are available.
Sum: Σ *, Σ
x x
2
11(STAT) 3(Sum) 1 to 8
Number of Items:
σ
, Sample Standard Deviation: s
y
11(STAT) 4(Var) 1 to 7
Minimum Value: minX*, minY, Maximum Value: maxX*, maxY
11(STAT) 5(MinMax) 1 to 2
(When the single-variable statistical calculation is selected)
11(STAT) 6(MinMax) 1 to 4
(When a paired-variable statistical calculation is selected)
Regression Coefficients: A, B, Correlation Coefficient:
m n
Values: ,
11(STAT) 5(Reg) 1 to 5
Regression Coefficients for Quadratic Regression: A, B, C, Estimated
m m
Values: , ,
1 2
11(STAT) 5(Reg) 1 to 6
• See the table at the beginning of this section of the manual for the regression
formulas.
m m m n
• , , and
1 2
an argument immediately before them. See "Calculating Estimated Values"
for more information.
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.
1N(SETUP)c3(STAT)1(ON)
A11(STAT) 4(Var) 2( o) =
A11(STAT)4(Var)3(σ
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: (
y
) = (20, 3150), (110, 7310), (200, 8800), (290, 9310). Specify Fix
3 (three decimal places) for results.
1N(SETUP)c3(STAT)2(OFF)
20 = 110 = 200 = 290 =ce
3150 = 7310 =8800 = 9310 =
*, Σ , Σ , Σ , Σ
y y xy
2
n
*, Mean:
n
are not variables. They are commands of the type that take
N2(STAT) 1(1-VAR)
1 = 2 = 3 = 4 = 5 =ce
1 = 2 = 3 = 2 =
Population Standard Deviation: 1.154700538
1N(SETUP)6(Fix)3
N2(STAT) 2(A + BX)
, Σ , Σ
x x y x
3 2 4
, Population Standard Deviation: σ
o p
*,
*, s
x y
x
= {1, 2, 2, 3, 3, 3, 4, 4, 5}, using
)=
x
E-19
r
, Estimated
STAT STAT
STAT STAT FIX FIX
*,
x
x
,