Mathematics, 25.03.2020 02:06, jilliynr9507

Exercise 4.4. Liz is standing on the real number line at position O. She rolls a die repeatedly. If the roll is 1 or 2, she takes one step to the right (in the positive direction). If the roll is 3, 4, 5 or 6, she takes two steps to the right. Let Xn be Liz's position after n flips of the coin. Estimate the probability that x90 is at least 160.

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Exercise 4.4. Liz is standing on the real number line at position O. She rolls a die repeatedly. If...