Project Deep Dive
The project deep dive. Explain one thing you built to an interviewer who has read nothing about it.
The questions in this round
Walk through one ML or analytics project from problem definition to measurement. What failed, and what changed because of your work?
Pick the decision in that project you are least sure was right. Why did you make it, and what would change your mind now?
When it went wrong, what did it cost the business? Give me a number.