Monday, December 10, 2007

Averages and Prayers

"...was just looking at my current ghrade after the take home test was calculated into it. It says I have a 79% right now which is what I had before the take home exam. I scored a B on that exam, so I do not understand why my grade did not go up. It seems to me that since that grade was higher then a 79 it should have gone up at least a point...maybe I am wrong, that is just what I have observed..."

Well, it's quite simple, really. It just involves a little thing called math, which unfortunately seems to be a foreign concept to most students these days. Let me see if I can attempt to explain this clearly enough:

Before the takehome exam there were a total of 450 maximum points that you have attempted. You achieved 355.4 of those 450 points. If you divide 355.4 by 450, you get 0.7997. If you multiply that by 100 then you get 79.97%. I usually do my rounding at the end of the term, so let's not even discuss that right now.

After the takehome exam there were a total of 500 maximum points that you have attempted. You made a 42 on that takehome exam, which brought your achieved points up to 397.4. If you divide 397.4 by 500, you get 0.7948. If you multiply that by 100 and round then you get 79.48%.

So, technically, your grade is actually lower now. Ain't math wonderful?

"At this point, is there anything else you might recommend that I do. I am nervous for the finals."

Ok, I got this e-mail after I left work on Friday. The lab final is on Tuesday and the lecture final is on Wednesday. The only thing I can suggest at this point, besides studying (which really you should've been doing all term) is to pray.

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