Question: how much percent is a quiz worth?
Answer: In a certain course, the quizzes are 15% of the grade, the lab score is 25%, the tests are 30%, and the Final is 30%. Students are allowed to drop the two lowest quiz scores and the one lowest test score. Course grades are on a standard ten-point scale: 90% or more is an A, 80% or more is a B, and so forth.