Casio fx-350MS Manual De Usuario

E-26

• Example: Atmospheric Pressure vs. Temperature

Perform linear regression to de-
termine the regression formula
terms and correlation coefficient
for the data nearby. Next, use
the regression formula to esti-
mate atmospheric pressure at
–5

°C and temperature at 1000

hPa. Finally, calculate the coeffi-
cient of determination (

2

) and

sample covariance

                              .

In the REG Mode:

1

(Lin)

A

 

B

 

1

 (Scl) 

=

 (Stat clear)

10 

P

1003 

S

Each time you press 

S

 to register your input,

the number of data input up to that point is

indicated on the display (

 value).

15 

P

 1005 

S

20 

P

1010 

S

 25 

P

 1011 

S

30 

P

 1014 

S

Regression Coefficient A = 

A X r r 1 =

Regression Coefficient B = 

A X r r 2 =

Correlation Coefficient 

 = 

A X r r 3 =

Atmospheric Pressure at 

5°C = 994.6

E

 

D 

5 

F A X r r r 2 =

Temperature at 1000 hPa = 

1000 

A X r r r 1 =

Coefficient of Determination = 

A X r r 3 K =

Sample Covariance = 

E A U r 3 ,

A U 3 - A X 1 -

A X r 1 F \

E A U 3 , 

1

 

F =

10

°C

1003 hPa

15

°C

1005 hPa

20

°C

1010 hPa

25

°C

1011 hPa

30

°C

1014 hPa

1.

n=

REG