Capital One PowerDay-style case interview for a Data Scientist role. The whole thing was one long, layered prompt about designing and validating a profitability metric for airline routes, and it went deeper than I expected across three distinct parts.
“I went with something like adjusted profit per block minute: take total revenue (fares plus ancillaries minus refunds), subtract direct costs (fuel, crew, airport fees, rebooking), then divide by block minutes.” The rest of the author's notes on Data Scientist interview at Capital One, Onsite - Multi Round round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.