Some teachers use a weighted mean to calculate gradesEach score is assigned a weight based on its importanceTo find a weighted mean, each score by and Reports For example, a student's chemistry grade based on four sources40% from lab reports10% from quizzes 25from the midterm examand 25% from the 90 What is the student's weighted mean given the scores in the table Exam Final Exam The weighted score your answerType an integer a
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