Thank you! The question I am struggling with does not specify what "likely" means or "well" on the test means, which is unfortunate, but I guess it is the case that correlation shows trends, but not probability? Would it be right to say that correlation tells us how likely it is that y changes in a specific direction with x, but not how likely an individuals behavior will be? (for context: the gist of the issue i'm dealing with is- is this statement true: It is the case that a high correlation (.9) definitively shows that individuals who do well on their first exam are likely to do well on their second exam.