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tanh transformation of symmetric positive definite matrix

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#linear-algebra #transformation #covariance #positive-definite
174
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tanh transformation of correlation matrix

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#linear-algebra #covariance #positive-definite #correlation
64
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Cross-covariance term of linear stochastic differential equation

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#stochastic-processes #stochastic-calculus #covariance #stochastic-differential-equations #noise
104
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Finding covariance using the expectation values

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#covariance
49
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Determine the covariance of geometric Brownian motion without using stochastic calculus.

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#stochastic-processes #normal-distribution #brownian-motion #covariance
69
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How can I get $\mathbf{Cov}(X,Y)$ from those conditions?

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#probability #conditional-probability #covariance
114
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Covariance, and the Taylor expansion for the expected value of a linear function of random variables

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#random-variables #taylor-expansion #expected-value #covariance #random-functions
62
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Variance and covariance problem

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#probability #probability-theory #statistics #expected-value #covariance
68
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Calculate Cov(X,Y) where X is #children with no books and Y is #children with exactly 1 book while distributing r books to n children.

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#probability #combinatorics #combinations #covariance
47
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Two question about change of basis.

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#linear-algebra #vectors #covariance #change-of-basis
38
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When independent variables covary (not correlate) in the regression, why this happen?

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#regression #covariance #correlation
34
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Does interaction mean covariance, not correlation?

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#regression #covariance
57
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Compute expected value from two dimensional normal distribution

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#solution-verification #random-variables #normal-distribution #expected-value #covariance
122
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Is the cosine angle between two R.V. an (approximation) not equality to the correlation coefficient?

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#statistics #inner-products #variance #covariance #correlation
97
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In which cases Shannon entropy is a convex function of a distribution parameter?

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#partial-derivative #covariance #positive-semidefinite #exponential-family

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