Question

Juan takes a test in which the questions are of varying levels of difficulty. As the questions become harder, his scores go down. In this context, which of the following accurately shows the correlation factor between the difficulty levels of the questions and Juan's scores?

A. 0.5

B. 0.98

C. 0

D. -0.92

E. -0.24

Answer

This answer is hidden. It contains 207 characters.