Question: Consider a simple random walk on the following directed graph. Suppose that the walker starts at state 4. a. How many visits to state 3

Consider a simple random walk on the following directed graph. Suppose that the walker starts at state 4.

1 2 3 4 5

a. How many visits to state 3 does the walker expect to make before visiting state 2?
b. How many steps does the walker expect to take before visiting state 2?

1 2 3 4 5

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