Let's consider a situation where a football player has to faceoff the goalkeeper in a penalty kickoff. Standing infront of the goalpost, the Kicker (player 1) has several angle which he could kick the ball to the goalpost. Let's say he could kick the ball in the Left corner of the goalpost, Right corner of the goalpost or shoot straight through the Center. And, same as the player, the goalkeeper (player 2) also has three options to predict which direction the player would kick the ball and try to stop it.

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Penalty kicks in soccer.
Let's consider a situation where a football player has to faceoff the goalkeeper in a penalty kickoff.
Standing infront of the goalpost, the Kicker (player 1) has several angle which he could kick the ball to the goalpost. Let's say he could kick the
ball in the Left corner of the goalpost, Right corner of the goalpost or shoot straight through the Center. And, same as the player, the
goalkeeper (player 2) also has three options to predict which direction the player would kick the ball and try to stop it.
This game can be represented using the following 3 x 3 matrix:
Left
Center
Right
60
40
94
6
93
7
Left
100 100
100 100)
100 100
100
100 100
95
91
Center
100 100
100 100
Right
91
9
(100 100
94
6
100 100
63
37
100 100
In the above matrix, the payoff of the kicker is the probability that he scores and the payoff of the goalkeeper is the probability that the kicker
doesn't score. We know that the total probability of an event is 1, therefore, all the payoffs sum up to 1.
1. Find a mixed strategy o1 =
(P1, P2, (1– P1 – P2)) for Player 1 that will make Player 2 indifferent about playing Le ft, Center or
Right.
2. Find a mixed strategy o2 = (q1, q2, (1-q1- 92)) for Player 2 that will make Player 1 indifferent about playing Le ft, Center or
Right.
3. What is the probability that the Kicker(player 1) scored a goal, or in other words what is the expected utility for player 1.
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If you are using decimal numbers instead of fractions, use at least six digits after decimal point.
Transcribed Image Text:Penalty kicks in soccer. Let's consider a situation where a football player has to faceoff the goalkeeper in a penalty kickoff. Standing infront of the goalpost, the Kicker (player 1) has several angle which he could kick the ball to the goalpost. Let's say he could kick the ball in the Left corner of the goalpost, Right corner of the goalpost or shoot straight through the Center. And, same as the player, the goalkeeper (player 2) also has three options to predict which direction the player would kick the ball and try to stop it. This game can be represented using the following 3 x 3 matrix: Left Center Right 60 40 94 6 93 7 Left 100 100 100 100) 100 100 100 100 100 95 91 Center 100 100 100 100 Right 91 9 (100 100 94 6 100 100 63 37 100 100 In the above matrix, the payoff of the kicker is the probability that he scores and the payoff of the goalkeeper is the probability that the kicker doesn't score. We know that the total probability of an event is 1, therefore, all the payoffs sum up to 1. 1. Find a mixed strategy o1 = (P1, P2, (1– P1 – P2)) for Player 1 that will make Player 2 indifferent about playing Le ft, Center or Right. 2. Find a mixed strategy o2 = (q1, q2, (1-q1- 92)) for Player 2 that will make Player 1 indifferent about playing Le ft, Center or Right. 3. What is the probability that the Kicker(player 1) scored a goal, or in other words what is the expected utility for player 1. Activate Go to Set If you are using decimal numbers instead of fractions, use at least six digits after decimal point.
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