If the correlation between X and Y is 0 and we observe a score (in Z units)of 1.5 on X , what score would be predicted for Y ?
A)−1.5
B)−.75
C)0
D)1.5

Question

Quizplus · Accepted Answer

A correlation of 0 between X and Y indicates that there is no linear relationship between the two variables. Therefore, knowing a score on X does not help predict a score on Y. The best prediction for Y, regardless of X's value, is the mean of Y, which in Z scores is 0.

If the Correlation Between X and Y Is 0 and We