Which of the Following Statements Best Illustrates the Concept of Covariance

Multiple Choice

Which of the following statements best illustrates the concept of covariance?

A) "The population means are not all equal to each other."
B) "There is no relationship between one's income and one's intelligence."
C) "The distribution is normal."
D) "People with below-average incomes spend more on the lottery than the average person."