Reference no: EM131005756
1. The state of a process changes daily according to a two-state Markov chain. If the process is in state iduring one day, then it is in state j the following day with probability Pi,j , where
P0,0 = 0.4, P0,1 = 0.6, P1,0 = 0.2, P1,1 = 0.8
Every day a message is sent. If the state of the Markov chain that day is i then the message sent is "good" with probability pi and is "bad" with probability qi = 1 - pi , i = 0, 1
(a) If the process is in state 0 on Monday, what is the probability that a good message is sent on Tuesday?
(b) If the process is in state 0 on Monday, what is the probability that a good message is sent on Friday?
(c) In the long run, what proportion of messages are good?
(d) Let Yn equal 1 if a good message is sent on day n and let it equal 2 otherwise. Is {Yn, n ? 1} a Markov chain? If so, give its transition probability matrix. If not, brie?y explain why not.
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