Correlation is _____________ of regression coefficients?
Correct answer: B. G.M.
- A. A.M.
- B. G.M.
- C. M.D.
- D. H.M.
Explanation
The correlation coefficient satisfies r² = bxy × byx, so its magnitude is the geometric mean of the two regression coefficients, with the common sign determined separately. Hence correlation is described as their geometric mean.
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