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

Question

Quizplus · Accepted Answer

-0.92 would be the most accurate depiction of the correlation between the difficulty levels of the questions and Juan's test results. A correlation of -1.0 means a perfect negative correlation-when one set of numbers goes up, the other goes down.

Juan Takes a Test in Which the Questions Are of Varying