To calculate your weighted average in the course, we will use the following formula for the weighted average:

$\text{Weighted Average} = (\text{Test Grade} \times \text{Test Weight}) + (\text{Lab Grade} \times \text{Lab Weight}) + (\text{Homework Grade} \times \text{Homework Weight}) + (\text{Final Exam Grade} \times \text{Final Exam Weight})$

Here are the grades and their corresponding weights:

• Test grade: 86%, Weight: 11% (0.11)
• Lab grade: 70%, Weight: 17% (0.17)
• Homework grade: 80%, Weight: 21% (0.21)
• Final Exam grade: 91%, Weight: 51% (0.51)

Now, let’s calculate the weighted average:

$\text{Weighted Average} = (86 \times 0.11) + (70 \times 0.17) + (80 \times 0.21) + (91 \times 0.51)$

Let me compute that.The weighted average for your course is 84.57%, accurate to two decimal places.

Would you like any further details or have questions about this calculation?

Here are 5 follow-up questions you might consider:

1. How do different weights affect your overall grade?
2. What would happen if the weight of the final exam changed?
3. How can you improve your weighted average in a specific category?
4. How are weighted averages used in other fields besides education?
5. How would missing an assignment impact your final grade?

Tip: Always double-check the weights and scores when calculating weighted averages to ensure accuracy.