1 answer published. Last candidate submission on Jul 15 2026, 5:39am PDT. Interview question asked to Data Scientists interviewing at YouTube, DoorDash, Uber and other companies. Original question asked: Describe a scenario where dropping rows with missing KPI data is actually the worst possible decision you could make.. Question last reported by a candidate interviewing at HelloFresh for a Data Scientist interview on Jul 13 2026, 1:31pm PDT.