In a two-dimensional symmetric random walk starting at the origin the probability that the nth step takes
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In a two-dimensional symmetric random walk starting at the origin the probability that the nth step takes the particle to (x, y) is (27)-22-n *[*[* (cos x + cos f)" + cos xx cos y da
d. Verify this formula and find the analogue for three dimensions. (Hint: Check that the expression satisfies the proper difference equation.)
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Related Book For
An Introduction To Probability Theory And Its Applications Volume 1
ISBN: 9780471257110
3rd Edition
Authors: William Feller
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