User Tools

Site Tools


covariance_properties

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

covariance_properties [2023/10/05 17:29] – created hkimscilcovariance_properties [2023/10/05 17:43] (current) hkimscil
Line 9: Line 9:
   - The additive law of covariance holds that the covariance of a random variable with a sum of random variables is just the sum of the covariances with each of the random variables. \\ $Cov(X+Y, Z) = Cov(X, Z) + Cov(Y, Z)$   - The additive law of covariance holds that the covariance of a random variable with a sum of random variables is just the sum of the covariances with each of the random variables. \\ $Cov(X+Y, Z) = Cov(X, Z) + Cov(Y, Z)$
   - The covariance of a variable with itself is the variance of the random variable.  \\ $Cov(X, X) = Var(X) $   - The covariance of a variable with itself is the variance of the random variable.  \\ $Cov(X, X) = Var(X) $
 +
 +
 +For additional info see [[http://prob140.org/textbook/content/Chapter_13/02_Properties_of_Covariance.html]]
covariance_properties.1696494588.txt.gz · Last modified: 2023/10/05 17:29 by hkimscil

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki