PRC-2 · Chapter 10 · Question 45 of 60
If a set of data yields a regression equation of Y = 10 + 0X, what is the value of the correlation coefficient (r)?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) 0
Explanation
A slope (b) of 0 mathematically means that changes in X have absolutely no effect on Y, resulting in a flat horizontal line. This strictly implies there is zero linear correlation (r = 0) between the variables.
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