Don't anyone have a heart attack that I'm posting only days after my last post ;-).
So, I had an interesting effect while grading one of my students' finals. Let's see if anyone can figure out this paradox. Names and actual grades changed to protect the innocent ;-).
So, I have a student who we will call Sally. Sally was hovering on the C/D range before the final exam (70-79 is a C). She had just less than a 70 before the final exam, but rounded to the nearest whole number, she had a 70 average and was passing with a C.
Enter final exam. Sally's final exam score was higher than her previous course average (so more than a 70), but her final exam made her course average drop below a 70, rounding to a 69 as the nearest whole number. So her final course grade was a D.
So question: how did this happen?