Professor Bono believes that there is a correlation between number of hours spent on social media and grades in first-year classes. Which of the following correlation coefficients would provide the STRONGEST support for her prediction?
A)+.70
B)-.85
C)+.25
D)-.70
E)0.0

Question

Quizplus · Accepted Answer

A correlation coefficient close to -1 or +1 indicates a strong relationship between two variables. In this case, -.85 (B) suggests a strong negative correlation, meaning as hours spent on social media increase, grades decrease, which supports Professor Bono's prediction.

Professor Bono Believes That There Is a Correlation Between Number