Which is more important for a class in your opinion attendance or test grades?

Some of my classmates were complaining that a kid who has missed like 10 days of class received a higher grade than they did overall for the course. He got great grades on all his tests even higher than the students who have never missed any class and now the teacher is contemplating changing his grade because of all the complaining which I think is bull. He studied hard just like everyone else. Just because he missed a few classes doesn't mean he should get less of a grade. By less of a grade I mean she was talking about taking it down about one or two. Meaning if he would get a high B it would go down to like a C or high D. How unfair!!! Or at least to me it is.Which is more important for a class in your opinion attendance or test grades?
For me attending classes leads to better grades because it helps me focus more on what should or should not study in huge massive books!!Which is more important for a class in your opinion attendance or test grades?
the kid should get what he earned, not what the class thinks he should get. so what if he missed class and was still able to get a good grade? if attendance was not outlined in a syllabus as being something that contributed to his grade, then the teacher should not be able to change his grade.
in my opinion attendance isn't important. as long as you learn what is being thought, thats fine. it's even better than being present in class but hasn't learned at all.