HP 300s+ Scientific STAT Menu Items, Sum Sub-menu((STAT) (Sum)), Single-variable (1-VAR)Statistical Calculation Commands

STAT Menu Items

Common Items

Select this	When you want to do this:
menu item:
Type	Display the statistical calculation type selection
Data	screen
	Display the STAT editor screen
Sum	Display the Sum sub-menu of commands for
Var	calculating sums.
	Display the Var sub-menu of commands for
Reg	calculating the mean, standard deviation, etc.
	Display the Reg sub-menu of commands for
	regression calculations.
	For details see “Commands when Linear Regression
	Calculation (A+BX) Is Selected” and “Commands
MinMax	when Quadratic Regression Calculation (_+CX2) Is
	Selected”.
	Display the MinMax sub-menu of commands for
	obtaining maximum and minimum values.

Single-variable (1-VAR) Statistical Calculation Commands

The following are the commands that appear when you select

(Sum), (Var), or (MinMax) on the STAT menu while a single-variable statistical calculation type is selected.

∑x

x= --------

n

∑(x – x)2 xσn = ------------------------

n

∑(x – x)2 xσn 1 = ------------------------

–n – 1

Sum Sub-menu ((STAT) (Sum))

Select this menu item: When you want to obtain this:

 ∑x2	Sum of squares of the sample data
 ∑x	Sum of the sample data

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