Consider a WSS random process X(t), whose amplitudes are normally distributed with E(x(t)) = 0 and Rx(τ) = e-2[τ]. Then P(X(t)) ≤ 2) = ?
$$\left( {Q\left( \alpha \right) = \frac{1}{{\sqrt {2\pi } }}\int\limits_\alpha ^\infty {{e^{ - \frac{{{x^2}}}{2}}}} dx} \right)$$
A. Q(1)
B. 1 - Q(2)
C. 1 - Q(1)
D. Q(2)
Answer: Option B
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

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