Tara notices that studying for one hour after class increases her economics grade by 11 points.The second hour yields a 7-point gain,the third hour yields a 4-point gain,and the fourth hour yields only a 1-point gain.This means that the marginal _____ of studying decreases with study hours.
A)cost
B)benefit
C)opportunity cost
D)time

Question

Quizplus · Accepted Answer

The marginal benefit of studying decreases with study hours. This means that each additional hour of studying yields a smaller increase in the economics grade. The marginal cost of studying may or may not change with study hours, as it depends on factors such as the amount of effort and resources (e.g. time) put into studying. Opportunity cost and time are not relevant to this question.

Tara Notices That Studying for One Hour After Class Increases