Amatos sells an average of 1,528 “real Italians” per week, with a standard deviation of 76. (a) Amatos takes a sample the number of “real Italians” sold per week for 32 weeks from 2018. What is the probability of the sample mean being less than 1500? (b) Amatos takes a larger sample of 60 weeks over the last few years. Now what is the probability of the sample mean being less than 1500? Greater than 1550?

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's.