how do you find out your grade when it's weighted?

Question

for my one class, homework's worth 15%, tests are 50%, and labs are 35%. so how do I figure out my total grade when things are weighted like that?
thanks in advance.

oh and note that I'm NOT talking about GPA.
kthx.

Answer 1

work out your grade for each section, by adding them up dividing by the %. then add your total for each section up so its out of 100 and that is your grade

Answer 2

Please excuse me if I insult your intelligence by starting at too low a level, because I don't know how much you know:

If homework has letter grades on it, change them to numerical ones - an A = 4 points, a B 3, a C 2, etc. Add all of them up and divide the total by the number of homework assignments you were given. That is your grade for homework.

Do the same for tests and, separately, the same for labs (if things are graded on a 100-point scale instead of by letter grades, you just can add the scores on each one up and divide them by the total number of homeworks, tests, or labs).

Then, take your grade for homework and multiply it by .15. Take your grade for tests and multiply it by .5. Take your grade for labs and multiply it by .35. Add up the three resulting numbers. That is your total grade for the class in numerical form.

Now, either your school or your professor should have given you a sense of what these numbers mean in terms of letter grades. For example, if you got an "82", at some schools that might be a B, at others a B-; it is completely up to their grading standards. If the school doesn't publish such standards in the catalog, then it is probably up to your professor and (s)he should have told you what a particular number will mean, unless it is said that the grades will be curved. In that case, the resulting number is only useful if looked at in comparison with everyone else. For example, a standard 82 grade might be a B, but if everyone else in the class got grades above 90, and yours was an 82, it could, in fact, be considerably lower. Or if everyone else got grades like 40 and 50, your 82 could end up to be an A.