I just spent 10 minutes answering a panicked email from a scheduled-to-be-graduating senior who's afraid that she isn't going to pass my class. It's an online class, and her participation has been less than stellar, but it's at least C level, and it's worth a fairly small portion of the course grade. She has an A- on a lightly-graded preparatory assignment worth nearly as much, and solid Bs in two other assignments worth, in total, 65% of the class grade, the more heavily-weighted of which she still has a chance to revise. As I told her, the only way she wouldn't pass would be to add plagiarized portions to the essay she's revising (and even that would be a judgment call, since she's already given me a satisfactory, plagiarism-free, version of that essay -- but I didn't say that). Admittedly the information necessary to come to this conclusion is in two places (the LMS gradebook, which doesn't offer much room for explanation, and the syllabus, which has the percentages), and it did take me a few minutes to pull it together. But my 10 minutes included some writing, and more than a little double-checking, since of course I don't want to send an email saying "don't worry; you're going to pass" to a student who might not, and her anxiety made me wonder if I was missing something. It's also possible, since she's taking this required course relatively late in her career, that she failed it once before.
But I'm still puzzled. She has the grades, she has the percentages, but she, like the students who disappear for most of the semester and then send emails asking how they can pass, seems to consider the origin of grades a total mystery. No wonder they find college so anxiety-provoking.