Here are four games.

1. Johnny picks either Heads or Tails. Oskar, seeing what Johnny has done, does the same. If they make the same choice, Oskar pays Johnny $1. If not, Johnny pays Oskar $1.
2. Johnny picks either Heads or Tails. Oskar pics Heads or Tails without seeing Johnny’s pick. If they make the same choice, Oskar pays Johnny $1. If not, Johnny pays Oskar $1.
3. Oskar picks either Heads or Tails. Johnny pics Heads or Tails without seeing Oskar’s pick. If they make the same choice, Oskar pays Johnny $1. If not, Johnny pays Oskar $1.
4. Emil flip a coin to decide who goes first: Oskar if Heads, Johnny if Tails. Whoever goes second moves without seeing the first player’s move. If they make the same choice, Oskar pays Johnny $1. If not, Johnny pays Oskar $1.

Think about the following questions:

• In each game, how much to you think Oskar can win?
• Describe the difference btween games 1 and 2.
• If you were Oskar, which game would you rather play: 2 or 3?
• If you were Oskar, which game would you prefer to play: 2 or 4?