What is the Z-score for North American sales of the top-selling video game of all time?

What is the Z-score for North American sales of the top-selling video game of all time?: a task in SmolDataEnvs-harbor-train-sandbox: 📊 SmolDataEnvs: Harbor (train) (Harbor dataset). Files (in /home/user/input, no subfolders): - vgsales.csv