ootusteväärtuse
Ootusteväärtus, often translated as expected value, is a fundamental concept in probability theory and statistics. It represents the average outcome of a random phenomenon if the experiment or process were repeated many times. In simpler terms, it's the weighted average of all possible values that a random variable can take, where the weights are the probabilities of those values occurring.
For a discrete random variable X that can take values x₁, x₂, ..., xₙ with corresponding probabilities
The expected value is a theoretical concept and does not necessarily represent a value that will actually