HP 300s - Page 54

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STAT Menu Items
Common Items
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.
Sum Sub-menu (  (STAT)  (Sum))
Select this
menu item:
When you want to do this:
 Type
Display the statistical calculation type selection
screen
 Data
Display the STAT editor screen
 Sum
Display the Sum sub-menu of commands for
calculating sums.
 Var
Display the Var sub-menu of commands for
calculating the mean, standard deviation, etc.
 Reg
Display the Reg sub-menu of commands for
regression calculations.
For details see “Commands when Linear Regression
Calculation (A+BX) Is Selected” and “Commands
when Quadratic Regression Calculation (_+CX
2
) Is
Selected”.
 MinMax
Display the MinMax sub-menu of commands for
obtaining maximum and minimum values.
Select this menu item: When you want to obtain this:

Sum of squares of the sample data

Sum of the sample data
x
x

n
--------=
xσ
n
xx–()

2
n
------------------------=
xσ
n 1–
xx–()

2
n 1–
------------------------=
x

2
x
