What statistic should be used to find out whether there is a relationship between years of education and annual income?
A)The Pearson correlation coefficient
B)The Spearman rank-order correlation coefficient
C)The point-biserial correlation coefficient
D)The nonlinear correlation coefficient

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient is commonly used to determine the strength and direction of the linear relationship between two continuous variables, such as years of education and annual income. Therefore, it is the best choice for this scenario. The Spearman rank-order correlation coefficient is also an option, but it is typically used when the relationship is not necessarily linear or when one or both variables are ordinal or ranked. The point-biserial and nonlinear correlation coefficients are not appropriate for this scenario.

What Statistic Should Be Used to Find Out Whether There