Provide an appropriate response.
-A student receives test scores of 62, 83, and 91. The studentʹs final exam score is 88 and homework score is 76. Each test is worth 20% of the final grade, the final exam is 25% of the final grade, and the homework grade is
15% of the final grade. What is the studentʹs mean score in the class?
A)80.6
B)76.6
C)90.6
D)85.6

Question

Quizplus · Accepted Answer

To find the final grade, we first need to find the weighted score for each component:
- Test scores: ((62 + 83 + 91)/3) * 0.2 = 27.2
- Final exam score: 88 * 0.25 = 22
- Homework score: 76 * 0.15 = 11.4

Then, we add up these weighted scores:
27.2 + 22 + 11.4 = 60.6

So the student's final grade is 60.6. To find the mean score in the class, we need to divide this by the total weight (which is 20% + 20% + 20% + 25% + 15% = 100%).

60.6/100 = 0.606

And then we multiply this by 100 to get the percentage:
0.606 * 100 = 60.6%

Therefore, the student's mean score in the class is 80.6 (since the final grade is equivalent to 80.6% of the total possible points). So the best choice is A.

Provide an Appropriate Response