Texas Instruments solar TI-36X - Page 38

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Ti36eng1.doc TI-36X II Manual Linda Bower Revised:
01/10/03 10:47 AM Printed: 01/10/03 10:47 AM Page 36 of
48
7. When finished:
•
Press
%f
and select
CLRDATA
to clear
all data points
without exiting
STAT
mode, or
•
Press
%h
to access the following
menu.
EXIT ST: Y
N
Press
V
when
Y
(yes) is underlined to clear
all data values and exit
STAT
mode.
STAT
indicator turns off.
Press
V
when
N
(no) is underlined to return
to the previous screen without exiting
STAT
mode.
Variables Definition
n
Number of
X
or (
X
,
Y
) data points.
ô
or
õ
Mean of all
X
or
Y
values.
Sx
or
Sy
Sample standard deviation of
X
or
Y
.
ó
x or
ó
y
Population standard deviation of
X
or
Y
.
÷
x
or
÷
y
Sum of all
X
or
Y
values.
÷
x
2
or
÷
y
2
Sum of all
X
2
or
Y
2
values.
÷
xy
Sum of
X
*
Y
for all
XY
pairs.
a
Linear regression
Y
-intercept.
b
Linear regression slope.
r
Correlation coefficient.
X
ê
(
2-VAR
) Calculates predicted
X
value when you
input a
Y
-value.
Y
ê
(
2-VAR
) Calculates predicted
Y
value when you
input an
X
value.