rewrite I like how every topic is kept fairly simple and not over complicated. The hardest concept to wrap my head around was calculating the z scores but what really helped was people posting links to the calculators to help solve their problem, I would suggest the professor possibly make a document of the best calculators for each topic, I found a lot of good websites but also a lot of bad ones that did even give the correct answer. Some advice I would give is to make yourself a study guide after taking the practice quiz because if the question isn't on the practice quiz it won't be on the actual quiz, secondly when coming up with your questions and problems for discussions find a good calculator that comes up with the correct answer and post a link to help your classmates