How to study for Intro to Stats for Business

I have Greg Manco as the professor and everybody says he's good but I don't understand his lectures. I attended pretty much every lecture no matter how boring it was but I still don't understand. Maybe I'm not taking notes properly but I'm losing hope and kinda wished I chose a different professor like Maygar. I didn't do good on the first exam and probably even worse on the second... haven't got the final grade back yet but if my score is not lower than I think it is I need at least a 90 on both exams to just get a C.

Honestly I think I might be cooked here since I might have to retake this class. But I guess on the bright side I can replace the grade in the future...