Casio FX-6300G, Owner'S Manual

Page: 71 / 187

I Linear regression
Example Operation
Display
•Relationship between temper­
ature and the length of a
steel bar
Temperature
Length
10°C 1003mm
15°C 1005mm
20°C 1010mm
25°C 1011mm
30°C 1014mm
The data in the above table
can be used to obtain the
terms of the regression for­
mula and the correlation coeffi­
cient. Based on the regression
formula, the estimated length
of the steel bar at 18°C and
the temperature when the bar
is 1000 mm long can be calcu­
lated. The critical coefficient
(
r 2) and covariance
/ L xy-n »x - J \
\
« - 1
)
can also be calculated.
(Clears memory)
10
d a s 1003ID
1 5 lsiiiFTir» 1 1 0 0 5 ÎPT 1
20S)E31010(
dt
)
25®|T]1011(H )
30®CD1014G>3
(Constant term A) iSHifTlfXlfiji)
(Regression coefficient B)
i s ü f l f B l i ^ l
(Correlation coefficient
r)
fSHÏFÏlITlfilxI)
(Length at 18°C) 1 8 I Ü Q l E ( d l
(Temperature at 1000mm)
A o o o m m m
(Critical coefficient) |
shift
| ( T
(Covariance)
m ra m a c ü a fw iE iB iiii
( S Q B E J C D B C D illlw )
B 1Q D H “ )
1
*.
15.
2
«.
25.
3«.
997.4
0.56
0.9826073689
1007.48
4.642857143
0.9 655 17 241 4
35.
’ Erroneous data clearing/correction (correct data operation: 10I5BHT|
iqo
3I5
t
|)
© I f 11 S O I 003 is entered, enter correct data after pressing 03.
© I f 11 B E 1003® is entered, enter correct data after pressing |
cl
).
© I f 1
1
B E 1003® was entered previously, enter correct data after pressing
11
B C D
1 0 0 3
® .