Let (X: n = 0, 1, 2, ..] be a Markov chain with two states 1, 2 with the following one-step transition probability matrix P. state 2 1 1/4 3/4 1/2 1/2 If Xo = 1, what is the probability that in exactly two steps after starting (i.e., at n -2) the state is 2 for the FIRST TIME? O 1/8 O none of the other choices O 3/16 O 1/4

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Let (Xp: n- 0, 1, 2,. ...] be a Markov chain with two states 1, 2 with the following one-step transition probability matrix P.
state
1/4
3/4
1/2
1/2
If Xo = 1, what is the probability that in exactly two steps after starting (i.e., at n -2) the state is 2 for the FIRST TIME?
O 1/8
O none of the other choices
O 3/16
O 1/4
Transcribed Image Text:Let (Xp: n- 0, 1, 2,. ...] be a Markov chain with two states 1, 2 with the following one-step transition probability matrix P. state 1/4 3/4 1/2 1/2 If Xo = 1, what is the probability that in exactly two steps after starting (i.e., at n -2) the state is 2 for the FIRST TIME? O 1/8 O none of the other choices O 3/16 O 1/4
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