Welcome to your interview.
The question is on your right: Investigating Rider Wait Time Spikes. 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.
If rider wait times in a specific city on Uber suddenly increase by 20%, how would you investigate the root cause?