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Ching, W.-K.; Lee, M. S. – International Journal of Mathematical Education in Science & Technology, 2005
This short note introduces an interesting random walk on a circular path with cards of numbers. By using high school probability theory, it is proved that under some assumptions on the number of cards, the probability that a walker will return to a fixed position will tend to one as the length of the circular path tends to infinity.
Descriptors: Probability, Mathematical Concepts, High Schools, Mathematics Education

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