3. Consider a simple random walk that starts at Xo o and let A denote the...

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3. Consider a simple random walk that starts at Xo o and let A denote the event that it will ever reach the starting point again: A={ Xn 0 for some ne L1,2,.}}. Show that 21-0) for ex2 for e- 2 for 042. PCA) 20 3. Consider a simple random walk that starts at Xo o and let A denote the event that it will ever reach the starting point again: A={ Xn 0 for some ne L1,2,.}}. Show that 21-0) for ex2 for e- 2 for 042. PCA) 20

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