Random Walk An aimless tourist, standing on a street
Chapter , Problem 8.6.53(choose chapter or problem)
Random Walk An aimless tourist, standing on a street corner, tosses a coin. If the result is heads, the tourist walks one block north. If the result is tails, the tourist walks one block south. At the new corner, the coin is tossed again and the same rule applied. If the coin is tossed 10 times, in how many ways will the tourist be back at the original corner? This problem is an elementary example of what is called a random walk. Random walk problems have many applications in physics, chemistry, and economics.
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