A product moment correlation coefficient is . What does this indicate?
Answer and explanation
Correct answer: D. no linear correlation
- Step 1: The value of lies between and ; its sign gives the direction and its size the strength of the linear relationship. Answer: no linear correlation. Why not the others: strong positive linear correlation: That describes a different value of . perfect negative linear correlation: That describes a different value of . weak positive linear correlation: That describes a different value of .
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