37 exams were submitted and scores ranged from 30% to 94%.
The mean score was 63.73%.

As a result, I curved the scores, raising each score +12 points.
The scores then ranged from 42% to 106% and the mean score was 75.73%.

The numerical score will correspond to a letter grade as follows:
 

Grade	Percentages	# Receiving
A	90-100%	13
B	80-89%	3
C	70-79%	9
D	60-69%	2
F	<60%	10