Question: Exercise 13.1.2 Let Y1,Y2, . . . , be mutually independent random variables and X0 an arbitrary random variable. Define Xn X0 +n i=1

Exercise 13.1.2 Let Y1,Y2, . . . , be mutually independent random variables and X0 an arbitrary random variable. Define Xn ≡ X0 +n i=1 Yi for n > 0. Show that

{ Xn, n ≥ 0 } is a stochastic process with independent increments.

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