When He Served, Tennis Champion Roger Federer Would Turn Away

question 3

Multiple Choice

When he served, tennis champion Roger Federer would turn away from his opponent, and toss the ball in the same way. Andy Roddick lamented that he could never tell whether Federer would serve to the left or right. Use game theory to explain Federer's strategy.

• A) Federer used a Nash equilibrium strategy.
• B) Federer used a non-equilibrium strategy.
• C) Federer used a randomized strategy.
• D) a and b.
• E) b and c.

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