Casio fx-350ES, Руководство пользователя

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E-39
Sum Sub-menu ( 1 1 (STAT) 4 (Sum))
Select this
When you want to obtain this:
menu item:
1
Σ
x
2
Sum of squares of the X-data
2
Σ
x
Sum of the X-data
3
Σ
y
2
Sum of squares of the Y-data
4
Σ
y
Sum of the Y-data
5
Σ
xy
Sum of products of the X-data and Y-data
6
Σ
x
3
Sum of cubes of the X-data
7
Σ
x
2
y
Sum of (X-data squares
×
Y-data)
8
Σ
x
4
Sum of biquadrate of the X-data
Var Sub-menu (
1 1
(STAT)
5
(Var))
Select this
When you want to obtain this:
menu item:
1 n
Number of samples
2
o
Mean of the X-data
3
x
σ
n Population standard deviation of the X-data
4
x
σ
n
–1
Sample standard deviation of the X-data
5
p
Mean of the Y-data
6 y
σ
n Population standard deviation of the Y-data
7 y
σ
n
–1
Sample standard deviation of the Y-data
MinMax Sub-menu (
1 1
(STAT)
6
(MinMax))
Select this
When you want to obtain this:
menu item:
1 minX Minimum value of the X-data
2 maxX Maximum value of the X-data
3 minY Minimum value of the Y-data
4
maxY Maximum value of the Y-data
Reg Sub-menu (
1 1
(STAT)
7
(Reg))
Select this
When you want to obtain this:
menu item:
1 A Regression coefficient constant term A
2 B Regression coefficient B
3
r
Correlation coefficient
r
4
m
Estimated value of
x
5 n
Estimated value of
y