random walk
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random walk
n. Statistics
A sequence of changes, either in the value of a random variable or in a process (as in the price of a share of stock), in which the direction and size of each change is randomly determined, subject to some specified rules.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
random walk
n
1. (General Physics) a mathematical model used to describe physical processes, such as diffusion, in which a particle moves in straight-line steps of constant length but random direction
2. (Statistics) statistics a route consisting of successive and connected steps in which each step is chosen by a random mechanism uninfluenced by any previous step
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ran′dom walk′
n.
the path of a point or quantity that moves or changes in a stepwise manner, where the direction of each step is statistically random.
[1900–05]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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| Noun | 1. | random walk - a stochastic process consisting of a sequence of changes each of whose characteristics (as magnitude or direction) is determined by chance stochastic process - a statistical process involving a number of random variables depending on a variable parameter (which is usually time) |
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