If the covariance of two random variable X and Y is µXY, their correlation coefficient ρXY 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: Option D
This Question Belongs to Electronics And Communications Engineering >> Communication Systems
Related Questions on Communication Systems
It is found that a ship to ship communication suffers from fading. This can be avoided by using
A. Space diversity
B. Frequency diversity
C. Broad band antenna
D. Directional antenna
A. A double-tuned amplifier
B. A high gain D.C. amplifier
C. A cathode follower stage
D. None of the above
A. Filter method
B. Phase cancellation method
C. Good attenuation characteristics
D. All of the above
Join The Discussion