Mathematics, 01.10.2019 21:30, fanny63

Arandom walk on the 2-dimensional integer lattice begins at the origin. at each step, the walker moves one unit either left, right, or up, each with probability 1/3. (no downward steps ever.)

a walk is a success if it reaches the point (1, 1).

what is the probability of success?

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Arandom walk on the 2-dimensional integer lattice begins at the origin. at each step, the walker mov...