One person got 44/44 correct. Many people got 43/44 correct. The median was 32/44.

I didn’t want to make hard cutoffs for the grades (since 1 question could make a big difference), so your grade is continuous from F (0) – A (4). 3 is B (not 75%). The curve is such that the median is at the AB/B border (which would round to an AB ). It’s a piecewise linear function if you’re curious. The actual function is below.

The statistical analysis from testing and evaluation suggests that there are no problems.

Roughly…

- 40 and above = A
- 37 is 3.75 (which rounds to A)
- 32 (median) is 3.35 (which rounds to AB)
- 27 is 2.3 (which rounds to BC)

Answer keys:

- Scramble 5: https://canvas.wisc.edu/files/8370750
- Scramble 6: https://canvas.wisc.edu/files/8370751
- Scramble 7: https://canvas.wisc.edu/files/8370752
- Scramble 8: https://canvas.wisc.edu/files/8370753

If you want the actual curve, it’s:

zeroPoint = 16 topPoint = 40 midGrade = 3.35 midPoint = 32 def curve(score): if score>=midPoint: return (4-midGrade) * min(1,(score-midPoint)/(topPoint-midPoint)) + midGrade else: return max(0,(score-zeroPoint)/(midPoint-zeroPoint)) * midGrade