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:

 

1Σx2

 

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))

1P(

2Q( 3R( 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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