The formula for the expected value is relatively easy to compute and involves several multiplications and additions. This article is about the term used in probability theory and statistics. For other uses, see Expected value (disambiguation). In probability theory, the expected value of a random variable, intuitively, is the long-run .. This is because an expected value calculation must not depend on the order in which the possible outcomes. Der Erwartungswert (selten und doppeldeutig Mittelwert) ist ein Grundbegriff der Stochastik. Krishna B. Athreya, Soumendra N. Lahiri: Measure Theory and Probability Theory (= Springer Texts in Statistics ). Springer Verlag, New York.