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Considn the random. walk Y. Y+Y + & tez; Y = 0, where & ind N (0, 0-). (1) Find u(t), 8 (s, t)

Considn the random. walk Y. Y+Y + & tez; Y = 0, where & ind N (0, 0-). (1) Find u(t), 8 (s, t) of {Y, tz}. te

Considn the random. walk Y. Y+Y + & tez; Y = 0, where & ind N (0, 0-). (1) Find u(t), 8 (s, t) of {Y, tz}. te (i) Sketch typical plots of {Y te Z+}.

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