To determine Marissa's overall course average, we will calculate a weighted average based on the given percentages for each category:

• Attendance: 5% of the grade
• Quizzes: 10% of the grade
• Exams: 60% of the grade
• Final Exam: 25% of the grade

The grades for each category are:

• Attendance: 100%
• Quizzes: 93%
• Exams: 86%
• Final Exam: 81%

To calculate the weighted average:

$\text{Course Average} = (100 \times 0.05) + (93 \times 0.10) + (86 \times 0.60) + (81 \times 0.25)$

Let me calculate that for you.Marissa's overall course average is 86.15%.

Would you like further details or have any questions? Here are five related questions you might find helpful:

1. How do weighted averages work in grading systems?
2. What if the final exam had a higher weight, how would it affect the overall average?
3. How can I calculate my grade for a course if one component is missing?
4. What happens to the average if Marissa improves her exam score?
5. How can percentage weights be applied in other grading systems?

Tip: Always check if the total percentage weight adds up to 100% when calculating a weighted average.