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Applied and theoretical statistics: e.g. statistical inference, regression, time series, multivariate analysis, data analysis, Markov chain Monte Carlo, design of experiments.

15 votes

Throwing a fair die until most recent roll is smaller than previous one

The answer may be expressed more simply, in fact $E_n = \left( \frac{n}{n-1}\right)^n$. Update 1: (The following was independently obtained by Pierre PC, I just found out after I finished typing.) The …
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