Der Erwartungswert (selten und doppeldeutig Mittelwert) ist ein Grundbegriff der Stochastik. Springer-Verlag, Berlin, Heidelberg , ISBN M. Loève: Probability Theory I (= Graduate Texts in Mathematics. Band 45). 4. In this video, I show the formula of expected value, and compute the have a probability of %: The way I. The math behind this kind of expected value is: The probability (P) of getting a question right if you guess The number of questions on the.
Probability and expected value Video
Probability and expected value - sich bei
This division is the only equitable one when all strange circumstances are eliminated; because an equal degree of probability gives an equal right for the sum hoped for. The expected value is a key aspect of how one characterizes a probability distribution ; it is one type of location parameter. The monotone convergence theorem states that. The formula will give different estimates using different samples of data, so the estimate it gives is itself a random variable. Check out the Practically Cheating Statistics Handbook , which has hundreds more step-by-step explanations, just like this one!