E-48
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), 6(MinMax), or
7(Distr) on the STAT menu while a single-variable statistical
calculation type is selected.
See Appendix <#052> for information about the calculation
formula used for each command.
Sum Sub-menu (11(STAT)4(Sum))
Select this
When you want to obtain this:
menu item:
1Σx
2
Sum of squares of the sample data
2Σx Sum of the sample data
Var Sub-menu (11(STAT)5(Var))
Select this
When you want to obtain this:
menu item:
1n Number of samples
2o Mean of the sample data
3xσn Population standard deviation
4xσn–1 Sample standard deviation
MinMax Sub-menu (11(STAT)6(MinMax))
Select this
When you want to obtain this:
menu item:
1minX Minimum value
2maxX Maximum value
Distr Sub-menu (11(STAT)7(Distr))
1 P( 2 Q( 3 R( 4 '
t
This menu can be used to calculate the probability of standard normal
distribution. Normalized variate t is calculated with the expression
shown below, using the mean value (o) and population standard
deviation value (xσn) obtained from the data input on the STAT editor
screen.
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