Easy · Expected Value & Decision Theory · Numerical · ~5 min · #81
Paid for Every Point Over Ten
Real interview · DRW
Game A: roll two dice and receive 1 dollar for each point the sum exceeds 10. Game B: one die is already fixed at 5, you roll the other, and the same payout applies.
Game B is worth more. How many dollars more?
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Worked solution
Give the problem an honest attempt first, then reveal the full explanation.
Reported in interviews
Candidate answers on the page disagree. Ours reads a sum of 12 as paying 2 dollars.
Candidate-reported and unverified; the firm may phrase it differently or no longer ask it. The wording here is our own paraphrase, and the solution was written and checked independently of any answers posted at the source.
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Expected valueOption-like payoffs
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