Welcome to your interview.
The question is on your right: Retention and LTV Tracking. 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 tools and methodologies do you use to track and analyze user retention and lifetime value (LTV) for Pearson?