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Visual Summary:  Computing the Covariance

Before You Begin

Compute the Mean for X
Compute the Mean for Y
Determine n (the number of pairs)

 

ê

 

X                                                   Y
 


í

î

For Every X Compute:


 

For Every Y Compute:


 


î

í

For Every X, Y Pair Compute:


 

ê

 


 

ê

 


 

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