Casio FC-200V User Guide - Page 115

Single-variable 1-VAR Statistical, Calculation Commands - standard deviation

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Paired-variable Menu Item Select this menu item: When you want to do this: 7Reg Display the Reg sub-menu of commands for regression calculations • For details see "Commands when Lin- ear Regression Calculation (A+BX) Is Selected" on page E-117 and "Commands when Quadratic Regression Calculation (_+CX2) Is Selected" on page E-121. A Single-variable (1-VAR) Statistical Calculation Commands The following are the commands that appear on the submenus that appear when you select 4(Sum), 5(Var) or 6(MinMax) on the STAT menu while a single-variable statistical calculation type is selected. Calculation formula used for each command o = Σx n xσn = Σ (x - o)2 n xσn -1 = Σ (x - o)2 n - 1 Sum Sub-menu (17(S-MENU)4(Sum)) Select this menu item: 1Σx2 2Σx When you want to obtain this: Sum of squares of the sample data Sum of the sample data Var Sub-menu (17(S-MENU)5(Var)) Select this menu item: When you want to obtain this: 1n Number of samples 2o Mean of the sample data 3xσn Population standard deviation 4xσn-1 Sample standard deviation E-113

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E-113
Paired-variable Menu Item
Select this
When you want to do this:
menu item:
Display the Reg sub-menu of commands
for regression calculations
• For details see “Commands when Lin-
ear
Regression Calculation (A+BX) Is
7
Reg
Selected” on page E-117 and “Com-
mands when Quadratic Regression
Calculation (_+CX
2
) Is Selected” on
page E-121.
A
Single-variable (1-VAR) Statistical
Calculation Commands
The following are the commands that appear on the sub-
menus that appear when you select
4
(Sum),
5
(Var)
or
6
(MinMax) on the STAT menu while a single-variable
statistical calculation type is selected.
Calculation formula used for each command
o
Σ
x
n
=
x
σ
n
n
=
Σ
(
x
–
o
)
2
x
σ
n
–1
n
– 1
=
Σ
(
x
–
o
)
2
Sum Sub-menu (
17
(S-MENU)
4
(Sum))
Select this
When you want to obtain this:
menu item:
1
Σ
x
2
Sum of squares of the sample data
2
Σ
x
Sum of the sample data
Var Sub-menu (
17
(S-MENU)
5
(Var))
Select this
When you want to obtain this:
menu item:
1
n
Number of samples
2
o
Mean of the sample data
3
x
σ
n
Population standard deviation
4
x
σ
n
–1
Sample standard deviation