How wouldn't it?
There is more or less the same amount of people getting 99.95 as there are people getting say, 70.35, or indeed any specific score. Using a bell curve creates an anomaly - there would be FAR more people getting in the 40s and 50s (the thick part of the bell) and only a small amount getting in the 90s, as opposed to equal amounts in each section.
They do use the bell curve for study scores, of course - there are FAR more people getting 30 in any subject than 50.





