Which of the Following Statements Is True?
A)The Correlation $- 1$

Which of the following statements is true?

A) The correlation coefficient is $- 1$ if there is a perfect positive correlation between two variables.
B) The correlation coefficient is 0 if there is a perfect positive correl ation between two variables.
C) The correlation coefficient is $0.5$ if there is a perfect positive correlation between two variables.
D) The correlation coefficient is 1 if there is a perfect positive correlation between two variables.

Correct Answer:

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