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An ant moves on the following lattice, beginning at the dot labeled A. Each minute he moves to one of the dots neighboring the dot he was at, choosing from among its neighbors at random. What is the probability that after 5 minutes he is at the dot labeled B?

 

https://latex.artofproblemsolving.com/d/0/4/d04c14a38efb837151549f4b864fde841fa50f95.png

 

THANKS FOR ALL HELP

 Feb 11, 2019
edited by alskdj  Feb 11, 2019

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