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Clearing Statistical Data; Statistical Calculations - HP -22S Owner's Manual

Scientific calculator.
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Clearing Statistical Data
You should clear the statistical registers before entering new data, or
when you no longer need the data and want to reclaim the memory it
uses. To clear the statistical registers, press
.1
CLEAR
I
{I}.
Statistical Calculations
The STAT menu, displayed by pressing I
STAT
I, provides the statistical
functions.
I
STAT
I
I
I
I
I
~
X,V
S
l.R.
I
I
x
V
xw
x
y
m
b
n
x
y
x
2
y2
xy
sx
sy
The STAT Menu and Statistical Functions
Menu Key
Description
{I}
Displays menu of summation statistics:
{n}
The number of data points entered.
{x}
Sum of the x-values.
{y}
Sum of the y-values.
{x
2 }
Sum of the squares of the x-values.
{)'2 }
Sum of the squares of the y-values.
{x)'}
Sum of the products of the x- and y-values.
62
5: Statistical Calculations

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