A random process X(t) is defined as:
X(t) = 2 cos (2πt + Y)
Where Y is a discrete random variable with \(P\left( {Y = 0} \right) = \frac{1}{2}\) and \(P\left( {Y = \frac{\pi }{2}} \right) = \frac{1}{2}\).
The mean μx(1) is1
\(\frac{1}{4}\)
2
\(\frac{1}{3}\)
3
\(\frac{1}{2}\)
4
1