Variance as Covariance
61003
Why shouldn't the denominator of the covariance estimator be n-2 rather than n-1?
104847
Minimum covariance of 2 random variables given the covariance of each with a third random variable
67246
How would you explain covariance to someone who understands only the mean?
94853
The linearity of variance
137156
How would you explain the difference between correlation and covariance?
65259
Variance of Normal Order Statistics
128639
Homoskedasticity Assumption: Var(y|x)=Var(u|x)=constant?
85588
How variance is defined?
105660
Invariance of action $\Rightarrow$ covariance of field equations?
27102
Combining two covariance matrices
141134
How to calculate weighted covariance?
155765
How to derive the covariance matrix of $\hat\beta$ in linear regression?
57999
How is Generic Covariance & Contra-variance Implemented in C# 4.0?
141301
Why covariance does not work with generic method
17635
How to create an arbitrary covariance matrix
120957
show that Cov(X+ Y, X-Y)= Var(X) - Var(Y)
156537
Recursive formula for variance