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What does it mean to minimize a matrix

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#linear-algebra #covariance #least-squares
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Why is the inverse of the sample covariance matrix a biased estimator of the true precision matrix?

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#matrices #inverse #covariance
93
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Covariance of random variables (returns)

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#probability #finance #correlation #covariance
766
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Covariance of two functions

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#functions #covariance #variance
526
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If the covariance of two uniformly distributed variables equals zero, are they independent?

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#correlation #covariance #independence
879
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Can I bound the correlation of two random variables using the mutual information?

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#probability #statistics #correlation #covariance
107
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Computing covariance for independently distributed uniform variables $X$, $Y$, and $Z$

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#probability #statistics #random-variables #covariance
137
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What is the correct definition of correlation?

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#probability #correlation #covariance
2.7k
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why is E(XX') the covariance matrix

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#matrices #regression #covariance
53
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Covariance between two variables when one of the variables only has two possible values

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#statistics #regression #covariance #regression-analysis #linear-regression
948
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Covariance matrix for least squares solution to $Ax = b$ when both $A$ and $b$ have uncertainties

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#linear-algebra #systems-of-equations #covariance #least-squares
4.9k
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Finding the Covariance of a Poisson process

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#statistical-inference #covariance
4.7k
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need help to get $Cov(XY,Z)$

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#probability #covariance
37
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Finding subset of uncorrelated variables

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#probability #probability-theory #random-variables #covariance
482
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Transformation of a covariance matrix to one with more or less "extreme" diagonals

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#matrices #covariance #positive-definite

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