Casio fx-82ZA PLUS User's Guide download pdf (Page 20)

E-19

For single-variable statistical calculations, the variables marked with an

asterisk (*) are available.

Sum: Σ x

*, Σ x *, Σ y

, Σ y , Σ xy , Σ x

, Σ x

y , Σ x

11(STAT) 3(Sum) 1

Number of Items:

n*, Mean: o*, p, Population Standard Deviation: σx*,

y, Sample Standard Deviation: sx*, sy

11(STAT) 4(Var) 1

Minimum Value: minX*, minY, Maximum Value: maxX*, maxY

11(STAT) 5(MinMax) 1

(When the single-variable statistical calculation is selected)

11(STAT) 6(MinMax) 1

(When a paired-variable statistical calculation is selected)

Regression Coefficients: A, B, Correlation Coefficient:

r , Estimated

Values:

m, n

11(STAT) 5(Reg) 1

Regression Coefficients for Quadratic Regression: A, B, C, Estimated

Values:

, m

, n

11(STAT) 5(Reg) 1

• See the table at the beginning of this section of the manual for the regression

formulas.

•

m, m

, m

and n are not variables. They are commands of the type that take

an argument immediately before them. See “Calculating Estimated Values”

for more information.

To input the single-variable data x = {1, 2, 2, 3, 3, 3, 4, 4, 5}, using

the FREQ column to specify the number of repeats for each items

({x

; freq

} = {1;1, 2;2, 3;3, 4;2, 5;1}), and calculate the mean and

population standard deviation.

1N(SETUP)c3(STAT)1(ON)

N2(STAT) 1(1-VAR)

1 = 2 = 3 = 4 = 5 =ce

1 = 2 = 3 = 2 =

A11(STAT) 4(Var) 2( o) =

A11(STAT)4(Var)3(σ

x)=

Results: Mean: 3 Population Standard Deviation: 1.154700538

To calculate the linear regression and logarithmic regression

correlation coefficients for the following paired-variable data and

determine the regression formula for the strongest correlation: ( x ,

y ) = (20, 3150), (110, 7310), (200, 8800), (290, 9310). Specify Fix

3 (three decimal places) for results.

1N(SETUP)c3(STAT)2(OFF)

1N(SETUP)6(Fix)3

N2(STAT) 2(A + BX)

20 = 110 = 200 = 290 =ce

3150 = 7310 =8800 = 9310 =

STATSTAT

STAT

FIX

STAT

FIX

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