Data
0
$
1
$
2
$
3
$
4
$ "
10
$
14
$
23
$
35
$
48
<
Regression
% u
# #
Save the
regression
equation
to f(x) in the
I
menu.
< $ $ $ "
<
Regression
Equation
<
Find the
average value
(
y
) of the data
in L2 using
StatVars.
% u
1
(Selects
StatVars
)
$ $ $
$ $ $
$ $
Notice that the title bar
reminds you of your last
statistical or regression
calculation.
Examine the
table of values
of the
regression
equation.
I
1
< $
0
<
1
<
< <
Warning:
If you now calculate 2-Var Stats on your data, the variables
a
and
b
(along
with
r
and
r
2
) will be calculated as a linear regression. Do not recalculate 2-Var Stats
after any other regression calculation if you want to preserve your regression
coefficients (a, b, c, d) and r values for your particular problem in the
StatVars
menu.
Math Functions
39