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(9 points) calculating a grade: A student's final grade in chemistry is determined by the following weights ms Category Weight Quizzes 5% Exam 1 20%

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(9 points) calculating a grade: A student's final grade in chemistry is determined by the following weights ms Category Weight Quizzes 5% Exam 1 20% Exam 2 20% Lab report 15% Research paper 15% Final exam 25% Use the following grades for a particular student Lab reports 97 88 74 95 63 67 77 54 Quizzes 68 52 74 75 67 54 67 0 Exam 1: 90 Exam 2 100 Research paper 90 Final exam 75 Express your answers rounded to the nearest tenth. a) What is the average lab report grade for this student? b) What is the average quiz score? c) What is the student's overall grade in chemistry? 18 19

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