Linear Regression - HP 10s+ User Manual

To display this result
Σx y
Regression coefficient C
• The statistics values calculated can be stored in
variables and used in expressions.

Linear Regression

• The formula for linear regression is
• Example: The relationship between atmospheric
pressure and air temperature is given in the
following table:
Air
Temperature
10°C
15°C
20°C
25°C
30°C
The following explains how to calculate the
coefficients of the regression formula and how the
formula can then be used to determine air
temperature at a particular pressure (1000hPa) and
the air pressure at a particular temperature (-5°C). In
the process, we also determine the coefficient of
determination (
3
Σx
2
4
Σx
x
1
2
x
y
2
r
) and the sample covariance.
Press these keys
    
    
    
    
     
     
     
Atmospheric
Pressure
1003 hPa
1005 hPa
1010 hPa
1011 hPa
1014 hPa
25
y
=A+B
x