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429.A Random Antisymmetric Determinant

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expected valueCh. 6 — Random Variables and Expectation444+ Problems in Probability
Let AA be a random 2×22\times 2 matrix with each entry independently Bernoulli(0.5)\mathrm{Bernoulli}(0.5). Find E[det(AAT)]E[\det(A - A^T)].

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