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2. Press
.
3. Enter a value for X1.
4. Press
.
In 1-VAR stat mode. enter the frequency of occurrence
(FRQ) of the data point. FRQ default=1, If FRQ=0, the
data point is ignored.
In 2-VAR stat mode, enter the value for Y1 and press
.
5. Repeat steps 3 and 4 unitl all data points are entered.
You must press
FRQ value entered. If you add or delete data points, the
unit automatically reorders the list.
6. When all points and frequencies are entered:
Press
for definitions) and their current values, or
Press
can do calculations with data variables (x, y, etc.).
Select a variable from the
to evaluate the calculation.
7. When finished:
Press
points without exiting STAT mode, or
Press
and FRQ values, and to exit STAT mode (STAT indicator
turns off).
Variables
Definition
n
Number of or ( , ) data points.
x or y
Mean of all or values.
Sx or Sy
Sample standard deviation of or .
x or y
Population standard deviation of or .
x or y
Sum of all or values.
x or y
Sum of all
xy
Sum of (
a
Linear regression slope.
Linear regression -intercept.
b
or
to save the last data point or
to display the menu of variables (see table
to return to the blank STAT screen. You
and select CLRDATA to clear all data
to clear all data points, variable
x
x y
x
y
x
y
2
2
x
or
y
x*y
) for all
9
menu and then press
x
x
values.
xy
pairs.
y
y
y
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