Help with this problem.

Question

To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades:

4.0 in a 5 credit Math course

2.4 in a 2 credit Music course

2.9 in a 5 credit Chemistry course

3.0 in a 4 credit Journalism course

What is the student's GPA for that term? Round to two decimal places. Student's GPA =

Answer 1

Here the GPA is the weighted average of the four grades in the four courses, i.e., 4.0, 2.4, 2.9, and 3.0. The weights are the number of credits in the four courses, i.e., 5, 2, 5, and 4.

So the GPA is

(5 * 4.0 + 2 * 2.4 + 5 * 2.9 + 4 * 3.0) / (5 + 2 + 5 + 4)

≈ 3.21