Welcome to your interview.
The question is on your right: Classical Quant Stockout Probabilities. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
What are classical quant problems, and how do you calculate the probability of stockouts given daily demand variance?