how to solve this problem?

4. Consider a binary random Markov sequence , Xny with state space 0. 14. The one step transition probability If i's given by IP = 6 1-b 4.1. Determine the n-step transition probability IP( ") 4. 2. Find the autocorrelation function for this stationary stocker- - Shis sequence : HINT: P") - S D25' R xx (k ) = E X n, Xu- k) = 4.3. if atb = 1 fund , and Rx (k)