Valore atteso e varianza di una variabile aleatoria

Expected value and variance of a discrete random variable. In the previous lesson, we explored the concept of a random variable, also doing some exercises that will be repeated in this lesson. The law of probability provides information regarding probability, but two parameters, the expected value and the variance (from which we derive the standard deviation), provide very important information. The example will clarify the concept further. Enjoy the video lesson "Discrete Random Variables":    • Variabili aleatorie discrete   #salvoromeo #probability #expectedvalue