ProbabilityExpected ValueMarkov Chains
A particle starts at 0 on the infinite integer line.
At each step, +1 and -1 occur with probability each.
What is the expected time to reach for the first time?
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A particle starts at 0 on the infinite integer line.
At each step, +1 and -1 occur with probability each.
What is the expected time to reach for the first time?