In probability theory, the expected value (also called expectation, expectancy, expectation operator, mathematical expectation, mean, expectation value, or first moment) is a …

The expected value in statistics is the long-run average outcome of a random variable based on its possible outcomes and their respective probabilities. Essentially, if an experiment (like a …

Oct 3, 2025 · In mathematics, the expected value (also known as the mean, expectation, or average) of a random variable is a measure of the central tendency or average outcome of …

Oct 3, 2025 · Expected value, in general, the value that is most likely the result of the next repeated trial of a statistical experiment. The probability of all possible outcomes is factored …

Expected value is exactly what you might think it means intuitively: the return you can expect for some kind of action, like how many questions you might get right if you guess on a multiple …

Definition (informal) The expected value of a random variable is the weighted average of the values that can take on, where each possible value is weighted by its respective probability.

Jun 23, 2025 · Expected value is the anticipated value for an investment at some point in the future and is an important concept for investors seeking to balance risk with reward.

In probability theory, an expected value is the theoretical mean value of a numerical experiment over many repetitions of the experiment. Expected value is a measure of central tendency; a …

Learn how to calculate and interpret the expected value for continuous and discrete random variables. All this with some practical questions and answers.

In probability and statistics, the expected value is the theoretical mean (this assumes that the experiment is run a relatively large number of times) of a random variable, X.