SOLUTION: An instructor bases final grades on the following scale: Item Weight term papers 30% tests 20% homework 10% final exam 40% Find the final average of a student who earned the

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Question 131113: An instructor bases final grades on the following scale:
Item Weight
term papers 30%
tests 20%
homework 10%
final exam 40%
Find the final average of a student who earned the following scores:
term paper 1- 85
term paper 2- 93
test 1- 80
test 2- 88
test 3- 92
homework total 95
final exam 81
When using weighted average how do you figure the term paper and test scores. I averaged each category (for papers and tests) and then did weighted average, is this correct?? My final answer was 85.93%.
Thank you.
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Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
An instructor bases final grades on the following scale:
Item Weight
term papers 30%
tests 20%
homework 10%
final exam 40%
Find the final average of a student who earned the following scores:
term paper 1- 85
term paper 2- 93
test 1- 80
test 2- 88
test 3- 92
homework total 95
final exam 81
When using weighted average how do you figure the term paper and test scores. I averaged each category (for papers and tests) and then did weighted average, is this correct?? My final answer was 85.93%.
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Add the three test scores; divide by 300 to get their average; multiply
by 0.20 to properly weight their contribution to the final grade.
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Add the term paper scores; divide by 200 to get their average; multiply
by 0.30 to properly weight their contribution to the final grade.
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Cheers,
Stan H.