a random sample of 65 high school seniors was selected from all high school seniors at a certain high school. the following scatterplot shows the height, in centimeters (cm), and the foot length, in cm, for each high school senior from the sample. the least-squares regression line is shown. the computer output from the least-squares regression analysis is also shown.

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. 

It is good, unless you eat a lot of it. it contains sugar.

Uh whats the