What a fraud alert is worth

What a fraud alert is worth

Visa Probability Interview Question

A fraud model catches 95% of fraudulent payments and wrongly flags 1% of legitimate ones. About one payment in 2,000 is fraud. A payment has just been flagged. What are the chances it is actually fraud, and what should the reviewer do with that?

Asked of

  • Data Scientist
  • Data Analyst
  • Product Analyst
  • ML Engineer
  • Business Analyst

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