Answer :
81.3 marks is obtained by the student in psycology course
percentage of marks of test that count for final marks =45 %
percentage of marks of quizzes that count for final marks =35 %
percentage of marks of papers that count for final marks =10 %
percentage of marks of final project that count for final marks =10 %
marks obtained by student in test = 75
marks obtained by student in quizzes = 85
marks obtained by student in papers = 88
marks obtained by student in final project = 90
Total marks obtained = [tex]\frac{45}{100} * 75 + \frac{35}{100} *85 + \frac{10}{100} * 88 +\frac{10}{100} *90[/tex]
Total marks obtained = 33.75 + 29.75 + 8.8 + 9 = 81.3
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