Let the real-valued sequence {x0,t} be defined by and let the real-valued sequence be defined by Suppose we have a discrete parameter stochastic process whose ensemble consists of just and We...

Let the real-valued sequence {x_0,t} be defined by

and let the real-valued sequence

be defined by

Suppose we have a discrete parameter stochastic process whose ensemble consists of just

and

We generat

realizations of this process by picking either

at random with probability 1/2 each.

Let

represent the process itself.

(a) What is

(b) What is

(c) What is

(d) Is

a (second-order) stationary process?