Let X,... be a sequence of independent and identically distributed random variables with mean 0 and variance

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Let X,... be a sequence of independent and identically distributed random variables with mean 0 and variance o. Let S = X, and show that {Z,, n 1} is a martingale when Z = S - no =1

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Stochastic Processes

ISBN: 9780471120629

2nd Edition

Authors: Sheldon M. Ross

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