Question: Value of r. A variable can have a direct causal effect on another variable only if the correlation coefficient is given by r = 1.

Value of r. A variable can have a direct causal effect on another variable only if the correlation coefficient is given by r = 1.

decide whether the statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain clearly; not all of these statements have definitive answers, so your explanation is more important than your chosen answer.

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