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Beweise E[X] = np und Var(X) = np(1-p) über Zerlegung X = Y_1 + *s + Y_n in Bernoulli-Variablen
Beweise E[X] = np und Var(X) = np(1-p) über Zerlegung X = Y_1 + *s + Y_n in Bernoulli-Variablen
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