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Coscott comments on Open Thread for February 11 - 17 - Less Wrong Discussion

3 Post author: Coscott 11 February 2014 06:08PM

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Comment author: Coscott 12 February 2014 01:36:53AM 3 points [-]

Take the kth car. It is at the start of a cluster if it is the slowest of the first k cars. The kth car is therefore at the start of a cluster with probability 1/k. The expected number of clusters is the sum over all cars of the probability that that car is in the front of a cluster.