How does that even happen?
Aren't the points awarded for all questions supposed to add up to 100?
I mean it's not exactly rocket science...
The marking scheme was really fucked up. It was multiple choice, with each question having choices a through e. The hard part was that there could be more than one correct choice. The way the marks were allocated was that if you picked an answer that was right, you got one point. But if you didn't get one that was right, you lost a point. And then to prevent guessing the teacher made it so that if you picked a wrong option you lost 2 points.
So say a question had choices a and c being right. If someone chose a and d, then they get one mark for a, lose one mark for not getting c, and then lose another two points for choosing d, for a total of negative two for that question.
It was literally the stupidest exam I've ever written.
How the heck does American grading works? In Sweden, anything below 50% on an exam (which 7/15 is) is an F.
I believe it means he needs a 7/15 in that exam for a B+ as a total mark for the class. It all depends on how much the exam is worth.