Which of the following statements BEST illustrates the concept of covariance?
A) "People with above-average intelligence vote more often than the average voter."
B) "The decision was made to reject the null hypothesis."
C) "The sample mean is significantly different from the population mean."
D) "Men are smarter than women."

Question

Quizplus · Accepted Answer

Covariance is a statistical measure that represents the degree to which two variables are linearly related. The statement "People with above-average intelligence vote more often than the average voter" indicates a relationship between two variables (intelligence and voting frequency), making it the best choice for illustrating covariance. The other statements do not mention a relationship between two variables. B and C refer to statistical tests and results, while D is a controversial and unsupported claim about gender intelligence differences.

Which of the Following Statements BEST Illustrates the Concept of Covariance