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Dart Championship is a easy quant interview question on probability.
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This is an easy probability question that asks you to reason about conditional probability and independence. It's the kind of problem used in interviews to see whether you can correctly update beliefs based on observed information—a core skill in quantitative finance.
The key insight is recognizing which events are independent and which constraints actually matter. Many candidates instinctively over-condition on the observed outcome, but the structure of the problem rewards careful thinking about what information is truly relevant to the event you're asked to evaluate. The setup involves comparing distances from a fixed target across multiple trials, so clarity about symmetry and exchangeability is useful.
Akuna.