If the covariance of two random variable X and Y is µ_XY, their correlation coefficient ρ_XY is:

A) $$\ell n{\mu _{XY}}$$ B) $$\ell n\left( {\frac{{{\mu _{XY}}}}{{{\sigma _X}{\sigma _Y}}}} \right)$$ C) $$\frac{{{\sigma _X}{\sigma _Y}}}{{{\mu _{XY}}}}$$ D) $$\frac{{{\mu _{XY}}}}{{{\sigma _X}{\sigma _Y}}}$$

Answer & Solution

Correct Answer: Option D

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If the covariance of two random variable X and Y is...

If the covariance of two random variable X and Y is µXY, their correlation coefficient ρXY is:

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