Expected ValueMarkov Chains
A toad sits on a table that is 20 cm wide, standing 6 cm from the left edge. Each jump is exactly 10 cm, to the left or to the right with probability each, independently. The toad is off the table as soon as it lands beyond either edge (below 0 cm or above 20 cm).
What is the expected number of jumps made, counting the jump that takes it off the table?
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