As instructor grades exams 20 term paper 50 and final exam 3

As instructor grades exams, 20%; term paper, 50%; and final exam, 30%. A student had grades of 86, 89, and 91, respectively, for exams, term paper, and final exam. Find the student\'s final average. Use the weighted mean. Round your answer to one decimal place. The student\'s final average is

Solution

Student final avereage = weights * individual total / total of weights = (20*86)/100 + (50*89)/100 + (30*91)/100
= ((20*86)+(50*89)+(30*91))/ 100
= 89