Texas Instruments solar TI-36X User Manual
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.
óx or óy
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.