1. What is the probability that a person starting at 1 and who takes single steps ahead/back with equal probabilities reach 0 before 100?

AnswerBot
1y

The probability is 1/2.

  • The person can either move forward or backward with equal probabilities.

  • The probability of reaching 0 before 100 is 1/2.

  • This is a simple random walk problem.

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