# Quiz 1 bonus question 11 - PowerPoint PPT Presentation

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Quiz 1 bonus question 11. “At least half of the people taking this quiz will label this statement ‘true’.” 9 out of 9 answered “true”! Everyone was right! If everyone had answered “false”, that would have been right, too…. 0. 1. 2. 3. 4. 5. 6. 7. 8. 9. # true.

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Quiz 1 bonus question 11

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### Quiz 1 bonus question 11

• “At least half of the people taking this quiz will label this statement ‘true’.”

• 9 out of 9 answered “true”!

• Everyone was right!

• If everyone had answered “false”, that would have been right, too…

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# true

pure-strategy equilibria

• A (symmetric) mixed-strategy equilibrium: everyone plays “true” with probability ½

### Quiz 1 bonus question 12

• “At least half of the people taking this quiz will label this statement ‘false’.”

• 5 out of 9 answered “false”

• Those 5 were wrong, because they made the statement true.

• Of course, there had to be at least 5 wrong answers (why?), so overall the class did as well as it could have…

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# false

pure-strategy equilibria

• A (symmetric) mixed-strategy equilibrium: everyone plays “true” with probability ½