Cov-egenskaper
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Cov(X,X)=Var(X)\text{Cov}(X,X)=\text{Var}(X)Cov(X,X)=Var(X), Cov(aX+b,cY+d)=acCov(X,Y)\text{Cov}(aX+b,cY+d)=ac\text{Cov}(X,Y)Cov(aX+b,cY+d)=acCov(X,Y), Cov(X,Y+Z)=Cov(X,Y)+Cov(X,Z)\text{Cov}(X,Y+Z)=\text{Cov}(X,Y)+\text{Cov}(X,Z)Cov(X,Y+Z)=Cov(X,Y)+Cov(X,Z)
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