Question

A professor gives 3 tests and uses a weighted average to determine the final grades in his psychology class. the weights are as follows: test 1 = 30%, test 2 = 20%, and test 3 = 50%. if a student scores 95 on the first test, 70 on the second test, and 80 on the third test, what would be her final score?

Answer 1

The weighted average for this case is given by:
GPA = ((weighting) * (note)) / (weighting)
Substituting values we have:
GPA = (((30) * (95)) + ((20) * (70)) + ((50) * (80))) / (30 + 20 + 50)
GPA = 82.5
Answer:
her final score would be:
GPA = 82.5