Walmart Global TechMediumModel Evaluation00:00

Welcome to your interview for the Machine Learning Engineer role at Walmart Global Tech.
The question is on your right: Evaluating Models with Metrics. 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. You have three graded attempts to score 7/10 or better.
How would you implement model evaluation techniques such as cross-validation, ROC curves, and precision-recall metrics?