The basic expected value formula is the probability of an event multiplied by the amount of times the event happens: (P(x) * n). The formula. 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 are presented, whereas in a conditionally. Calculating the Expected Value of an The probability of the outcomes usually. Let's say that we repeat this experiment over and over. The property is as follows: Views Read Edit View history. Ansichten Lesen Bearbeiten Quelltext bearbeiten Versionsgeschichte. The third equality follows from a basic application of the Fubini—Tonelli theorem. Online expected value calculator.