Questions: In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score However, the lab score is worth 23% of your total grade, each major test is worth 22%, and the final exam is worth 33%. Compute the weighted average for the following scores: 87 on the lab, 90 on the first major test, 80 on the second major test, and 84 on the final exam. Enter your answer as a whole number.

In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score However, the lab score is worth 23% of your total grade, each major test is worth 22%, and the final exam is worth 33%. Compute the weighted average for the following scores: 87 on the lab, 90 on the first major test, 80 on the second major test, and 84 on the final exam. Enter your answer as a whole number.

Solution

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Solution Steps

Step 1: Calculate the Weighted Score for Each Component

Weighted Lab Score = 87 * 0.23 = 20.01 Weighted Test 1 Score = 90 * 0.22 = 19.8 Weighted Test 2 Score = 80 * 0.22 = 17.6 Weighted Final Exam Score = 84 * 0.33 = 27.720

Step 2: Sum the Weighted Scores

Total Weighted Score = 20.01 + 19.8 + 17.6 + 27.720 = 85.130

Step 3: Round the Result

Final Grade (rounded to 0 decimal places) = 85

Final Answer:

The final grade, rounded to 0 decimal places, is 85.

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