Most debt settlement letters include: The date, name, and address of the credit card company. A notation after the address that this is regarding a hardship letter. The credit card number and amount of the debt. A short statement of your financial situation, why you're in that situation, and why full payment is a hardship.
If you expect to win about $2.20 on average if you play a game repeatedly and it costs only $2 to play, then the expected payoff is $0.20 per game. In general, to find the expected value for a game or other scenario, find the sum of all possible outcomes, each multiplied by the probability of its occurrence.
The payoff function is a function u i : S 1 × S 2 × ⋯ S m → R .