A discrete-time random processXn is denoted as follows.A fairdie is tossed and the outcome k is observed. The process is thengiven by Xn=k for all n.
a) Sketch some sample paths of the process
b)Find the pmf for Xn
c)find the joint pmf for Xn and Xn+k
d)find the mean and auto covariance functions of Xn