# Probability and expected value

Der Erwartungswert (selten und doppeldeutig Mittelwert), der oft mit μ {\displaystyle \mu } \mu Springer-Verlag, Berlin, Heidelberg , ISBN M. Loève: Probability Theory I (= Graduate Texts in Mathematics. Band 45). 4. Probability and Expected Value. Independent Events. If two random events are independent of one another, the probability that both will occur is the product of. 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 test (n)*: