A simple random walk steps one unit left or right with equal probability, so after N steps its position is X = 2B − N with B ~ Binomial(N, ½). Here 200 walkers take N = 10 steps. The law has mean 0 and variance N = 10; the 200 finishing points give 0.04 and 9.97. They land only

Name: A simple random walk steps one unit left or right with equal probability, so after N steps its position is X = 2B − N with B ~ Binomial(N, ½). Here 200 walkers take N = 10 steps. The law has mean 0 and variance N = 10; the 200 finishing points give 0.04 and 9.97. They land only
Channel: matharium
Description: A simple random walk steps one unit left or right with equal probability, so after N steps its position is X = 2B − N with B ~ Binomial(N, ½). Here 200 walkers take N = 10 steps. The law has mean 0 and variance N = 10; the 200 finishing points give 0.04 and 9.97. They land only

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A simple random walk steps one unit left or right with equal probability, so after N steps its position is X = 2B − N with B ~ Binomial(N, ½). Here 200 walkers take N = 10 steps. The law has mean 0 and variance N = 10; the 200 finishing points give 0.04 and 9.97. They land only

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