What are the 5 Main Properties of Correlation Coefficient? (PDF) 2021

 PROPERTIES OF CORRELATION COEFFICIENT ' r ' :

1 - Correlation Coefficient 'r' lies between - 1 and + 1 , that is; - 1 <  r < + 1 .

2 - Correlation Coefficient 'r' is Symmetric about X and Y....

                                  r XY = r YX

The Formula of Correlation Coefficient ' r ' is.....

3 - Correlation Coefficient  ' r ' is the Geometric Mean of two Regression Coefficients.

REGRESSION COEFFICIENTS:

There are Two regression coefficients : 

b YX; 

b XY;

NOTE: The Main Common formulas of Regression Coefficients are: 

b YX;

b XY;

4 - Correlation Coefficient 'r' in Independent of change of origin and scale, that is;

                                              r XY = r UV

But the Formula of  " r UV " is:

5 - Correlation Coefficient 'r' is the Independent of any unit of measurement.

MOST IMPORTANT POINTS:

The Regression line Y on X is...

The Regression line X on Y is...

At last,

best of luck!!

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