Which of the following pairs is the most likely to exhibit an inverse relationship?
A) The amount of time you spend studying and your final marks.
B) Waiter's tips and his/her service.
C) The annual income and demand for overseas travel.
D) People's annual income and their expenditure on second-hand clothes.

Question

Quizplus · Accepted Answer

An inverse relationship means that as one variable increases, the other decreases. Choice D, which relates people's annual income and their expenditure on second-hand clothes, is the most likely to exhibit an inverse relationship as people with higher incomes may be less likely to shop for second-hand clothes, whereas those with lower incomes may be more likely to do so. The other choices are not necessarily linked in an inverse relationship - studying more may lead to better marks, better service may lead to higher tips, and a higher income may lead to higher demand for overseas travel.

Which of the Following Pairs Is the Most Likely to Exhibit