When do I use the five-paragraph format and when can I write more freely?
If your teacher does not lay out what kind of format is needed for a paper, I suggest trying out some new styles. I think you can learn a lot from writing outside the lines, and experimenting with a format that is not so structured.
How do you study?
I believe the number one thing to improve your studying is to have a clear and reasonable objective. Start small, give yourself time, and use it wisely.
How do you classify data in Statistics?
In Statistics, there are two ways to classify data: Categorical (Qualitative) and Quantitative. Within these two classifications, there are further distinctions. Categorical data can either be nominal or ordinal, and Quantitative data can be discrete or continuous.