.05 + .93(.15) + .82(.60) + .81(.20) =
.05 + .1395 + .492 + .162 = ?
.05 + .1395 + .492 + .162 = ?
Marissa's grade is 84.35%
55%
of the grade, quizzes count for
1010%
of the grade, exams count for
6060%
of the grade, and the final exam counts for
2525%
of the grade. Marissa had a
100100%
average for attendance,
8989%
for quizzes,
8686%
for exams, and
8585%
on the final. Determine Marissa's course average.
First, let's calculate the weighted average for each category:
Weighted average for attendance:
Attendance score * Weight for attendance = 100% * 5% = 5
Weighted average for quizzes:
Quiz score * Weight for quizzes = 93% * 15% = 13.95
Weighted average for exams:
Exam score * Weight for exams = 82% * 60% = 49.2
Weighted average for the final exam:
Final exam score * Weight for the final exam = 81% * 20% = 16.2
Next, sum up the weighted averages for each category:
5 + 13.95 + 49.2 + 16.2 = 84.35
Finally, divide the sum by the total weight percentage to get Marissa's course average:
Course average = Sum of weighted averages / Total weight percentage
Course average = 84.35 / 100% = 84.35
Therefore, Marissa's course average is 84.35.