
Top OpenAI Data Scientist Interview Questions
OpenAI’s data scientist interviews are renowned for their depth, covering a blend of advanced probability, resource allocation, system design, and practical engineering. This article delves into some of the most challenging and illustrative questions you may encounter, providing comprehensive explanations, step-by-step solutions, and essential concepts. Whether you’re preparing for an interview or seeking to deepen your understanding of these core topics, this guide will help you master the principles behind data science at scale, from stochastic processes to fair resource allocation and system design.
A plant disease begins in one cell of an \( N \times N \) grid. Each day, every infected cell infects each of its healthy neighbors (up, down, left, right) with probability \( p \). How many days, on average, will it take for the entire grid to be infected?
This is a classic stochastic infection propagation problem, similar to the SIR (Susceptible-Infected-Recovered) model without recovery. The grid represents the spatial domain, and the infection spreads probabilistically.