Answer:
162.4
Step-by-step explanation:
To calculate your course average, you need to consider the weightage of each grade component. Based on the given table, the homework grade is weighted at 10%, the test grades are weighted at 40% altogether, and the final exam grade is weighted at 50%.
Let's calculate the weighted average step-by-step:
1. Calculate the weighted average of the homework grade:
- Multiply the homework grade (55) by its weight (10% or 0.1):
55 * 0.1 = 5.5
2. Calculate the weighted average of the test grades:
- Add up the test grades: 91 + 82 + 70 + 68 = 311
- Multiply the sum by the weight (40% or 0.4):
311 * 0.4 = 124.4
3. Calculate the weighted average of the final exam grade:
- Multiply the final exam grade (65) by its weight (50% or 0.5):
65 * 0.5 = 32.5
4. Add up the weighted averages from steps 1, 2, and 3:
5.5 + 124.4 + 32.5 = 162.4
5. Calculate the course average by dividing the sum by the total weight:
162.4 / 1 = 162.4
Therefore, your course average is 162.4.