Do they have make mistakes on final GPA calculations?

<p>As the title says, because I'm rather confused about a couple of grades so far. For one I know I was pretty much setting the curve for my class (mand 109) and the class for the previous years is supposed to be curved to an A, and I have an A- so I'm wondering if there's anything special that could rationalize this situation. And the other, do things like switching section times and then not getting attendance marks or recording test marks wrong happen a lot?</p>

<p>i know this is a very neurotic post but i'm just rather confused about my grades so far. thanks all for responding</p>

<p>I would just email the professor. Mistakes do happen.</p>