Before revision: Equation The problem is modeled with a payoff matrix Rij in which the row index i describes a choice that must be made by the payer , while the column index j describes a random variable that the payer does not yet have knowledge of, that has probability pj of being in state j.
After revision: Equation The problem is modeled with a payoff matrix Rij in which the row index i describes a choice that must be made by the player , while the column index j describes a random variable that the player does not yet have knowledge of, that has probability pj of being in state j.