PRC-2 · Chapter 10 · Question 40 of 60
If variable X and variable Y exhibit a 'perfect positive correlation', what must be the mathematical value of r?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) 1
Explanation
A perfect positive correlation signifies that all data points fall exactly on an upward-sloping straight line. In statistical terms, this is strictly represented by an r value of exactly +1.
More Correlation and Regression MCQs
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