Professor Ganji jokes that there is a -.85 correlation between the number of courses a student takes with him and the student's grade point average. Which of the following is the best interpretation of this statement?
A) in general, the more courses that students take from professor Ganji the lower their grade point average
B) the more courses students take from professor Ganji the higher their grade point average
C) professor Ganji is an easy instructor
D) students who take more of professor Ganji's class are guaranteed to have a higher grade point average

Question

Quizplus · Accepted Answer

A negative correlation (in this case, -.85) indicates that as one variable increases, the other decreases. Therefore, the more courses students take with Professor Ganji, the lower their grade point average tends to be.

Professor Ganji Jokes That There Is a -