The explanation answers the original question -

Why is the final grade 73.8 rather than 80.7?

No question asked for a formula for the general case of N chapter
tests where N may not match the ratio of the test weights. I agree
with the reasoning applied however.

I am more curious as to how a final grade of 80.7 was computed, though
it was not documented.
Tom


On Fri, 30 Apr 2004 15:04:22 GMT, alpinekid
wrote:
Spehro Pefhany wrote:
On Fri, 30 Apr 2004 09:22:18 -0400, the renowned Kingfish
wrote:
I think that your answer of "add it up and divide by 5" only works because the
number of tests is the same ratio as the weighting. You can see this by taking
an extreme case. Suppose there were 100 chapter tests and only two term tests,
this would not be right.