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Theory and applications of probability and stochastic processes: e.g. central limit theorems, large deviations, stochastic differential equations, models from statistical mechanics, queuing theory.

4 votes
0 answers
151 views

Exchangeable Bernoulli random variables with bounded summation implies negative correlation?

Let $\big\{X_1, X_2, ..., X_n \big\}$ be $n$ jointly exchangeable Bernoulli random variables, i.e., exchanging the order of these random variables does not change the joint distribution. If we know th …
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  • 205
2 votes
1 answer
345 views

Covariance/Correlation matrix of $n$ random variables with uniform marginal distributions

Let $X_1, \cdots, X_n \sim \mathrm{Unif}[0,1]$ be $n$ random variables, each with marginal distribution being a standard uniform distribution. I want to characterize the set of covariance matrices (or …
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  • 205