Very strange

Aug 11, 2005 14:33

So I've just finished grading the last exam I gave in class, and I calculated their grade up to this point in class. Out of a class of 28, I somehow ended up with 3 people getting a 76.1 and 3 people getting a 71.6. (The only other grade that repeated was 2 people are getting a 93.7). I mean, this grade is the average of 3 exams and 2 homework ( Read more... )

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sgeimh_solais August 12 2005, 15:42:52 UTC
Well, because the average should fall somewhere around the middle of the bell curve, which means more people should have grades like it, which means it's just a matter of mathematical chance?

Either that or they're cheating. Were all their grades exactly the same, or is it just that the sums and mean end up the same?

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cocoasushigrrl August 23 2005, 13:45:03 UTC
Hm, valid point re: the bell curve. You'd think, after just taking a year of stats, I'd think of something like that, wouldn't you? :)

And no, their answers weren't the same at all, just their final grade on the exam. And oddly enough, it happened again with final grades, two students both received an 82.49 (not the same students, thank goodness). Maybe it's just me... :)

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sgeimh_solais August 29 2005, 14:00:59 UTC
*lol* Oh, i wouldn't have necessarily thought of the bell curve as the first answer, and i've had a year of sadistics too. *lol* I think that math is probably the LAST place i look for answers!!

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