Question

36. Which one of the following probably describes a positive relationship?

a. automobile weight and gas mileage

b. test score and time to complete test

c. current age and remaining years of life expectancy

d. years of education and lifetime earnings

Answer 1

Since all the given option is explain here.

(A).Since a heavier car would take more energy to move, we would expect a negative relationship between a car's gas mileage and its weight.

(B).Since, test grades were negatively correlated with test completion time and with perceived test difficulty.

(C). Since there is a negative correlation between the variable 'actual age' and 'remaining life expectancy'. The higher the actual age, the lower the average remaining life expectancy will be.

(D). Since,. The relationship between education and income is strong.. In general, those with more education earn higher incomes. It means if a person expend more year in education earn higher income.

Thus it is a positive relationships.

Hence, option (D) is correct answer.