Which of the following statements best illustrates the concept of covariance?
A) "People with above-average intelligence spend more on books."
B) "The population means are all equal to each other."
C) "The results of the analysis support the research hypothesis."
D) "There is no relationship between race and IQ scores."

Question

Quizplus · Accepted Answer

Covariance is a statistical measure of the degree to which two variables vary together. The statement "People with above-average intelligence spend more on books" suggests that there is a positive relationship between intelligence and book spending, which would result in a covariance between the two variables. The other statements do not refer to any relationship between variables.

Which of the Following Statements Best Illustrates the Concept of Covariance