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Question

In your biology class, your final grade is based on four categories. The categories are tests, labs, assignments, and a final exam. Suppose you earned the following grades in each of the categories; 48% on tests, 91% on labs, 100% on assignments, and 78% on the final exam. If tests are worth 23%, labs are worth 7%, assignments are worth 15%, and the final exam is worth 55%, determine your final grade in the course. Record the grade below as a percentage accurate to two decimal places.

Answer 1

Category | Grade obtained | Worth

Tests | 48% | 23% = 0.23

Labs | 91% | 7% = 0.07

Assignments | 100% | 15% = 0.15

Final Exam | 78% | 55% = 0.55

The grade in the course is a weighted average of the grades obtained in the different categories.

(0.23 x 48 + 0.07 x 91 + 0.15 x 100 + 0.55 x 78) % = 75.31%