If x and y are two random variables and a, b, c, d are any numbers provided a…
20162021
If x and y are two random variables and a, b, c, d are any numbers provided a ≠ 0, c ≠ 0, then correlation coefficient between ax + b and cy + d is –
Answer: D. r(ax + b, cy + d) = (ac / |ac|) r(x, y)
- A.
r(ax + b, cy + d) = (ab / cd) r(x, y)
- B.
r(ax + b, cy + d) = (ac / bd) r(x, y)
- C.
r(ax + b, cy + d) = (|ac / bd|) r(x, y)
- D.
r(ax + b, cy + d) = (ac / |ac|) r(x, y)
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Correct answer: D
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