4. Tanya is considering playing a game at the fair. There are three different ones to choose from, and it costs $2 to play a game. The probabilities associated with the games are given in the table.
Lose $2
Win $1
Win $4
0.55
0.20
0.25
Game 1
Game 2
0.15
0.35
0.50
Game 3
0.20
0.60
0.20
a What is the expected value for playing each game?
b. If Tanya decides she will play the game, which game should she choose? Explain.