Which of the Following Is Not True of Correlation

Multiple Choice

Which of the following is not true of correlation?

A) The fact that there is a correlation between two variables means that one variable causes the other, but it isn't clear which is cause and which is effect.
B) A negative correlation means that an increase in the value of one variable is associated with a decrease in the value of the other variable.
C) The number in a correlation coefficient indicates the relative strength of the relationship between two variables-the higher the number, the stronger the relationship.
D) Correlations are useful in making predictions. The stronger the relationship between the variables, the better the prediction.