please look at the attachments.
A small correction to Problem 2 in PS10: the matrix P should have 3/8, not 3/9, as the value for the (5,6) entry. This will make the row sum to one. Thanks to the student who pointed that out!
Also, please make sure you are interpreting Problem 1 consistent with the graph figure. For example, the probability p14 (i=1, j=4) should be zero since there is no edge between 1 and 4.
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