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Homework in statistics Variant 14 Discrete distribution for X is given by the following table: Probabilities p Values X 0.5 20 6 0.2 40 0.1 50 0.1 0.1 -20 distribution function f0) and median Mecx). Calculate expectation value M(x), variance (dispersion) DA), standard error σ(X) , asymmetry coefficient As(X) and excess Et(X).

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