The earliest reference to the probability concept may be traced back to the writing of a gambler’s manual by Girolamo Cardano (1501-1576) [1,2]. However, Pierre Fermat (1601-1665) and Blaise Pascal (1623-1662) were the rst two persons who solved correctly and independently the problem of dividing the winnings in a game of chance. Boolean algebra, which plays an important role in modern probability theory, is named after the mathematician George Boole (1815-1864), who published, in 1847, a pamphlet entitled “The Mathematical Analysis of Logic: Being an Essay towards a Calculus of Deductive Reasoning” [1,3].