What does it mean to say the correlation between two variables is zero?
A)The two variables have the same mean and the same distribution.
B)Measuring one variable gives no information useful in predicting the other.
C)Neither variable measures anything of practical importance.
D)The strength of the relationship between the variables has decreased over time.

Question

What does it mean to say the correlation between two variables is zero?​
A)The two variables have the same mean and the same distribution.
B)​Measuring one variable gives no information useful in predicting the other.
C)​Neither variable measures anything of practical importance.
D)​The strength of the relationship between the variables has decreased over time.

Quizplus · Accepted Answer

When the correlation between two variables is zero, it means that measuring one variable gives no information useful in predicting the other. In other words, there is no linear relationship between the two variables. It does not necessarily mean that the variables have the same mean or distribution, or that they measure anything of practical importance. It also does not imply any changes in the strength of the relationship over time.

What Does It Mean to Say the Correlation Between Two