Nicolás Kim
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399
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### Questions (3)

 33 Rain droplets falling on a table 20 Evaluating $\int\limits_0^\infty \! \frac{x^{1/n}}{1+x^2} \ \mathrm{d}x$ 2 Expected length of a game of Kings

### Reputation (399)

 +35 Evaluating $\int\limits_0^\infty \! \frac{x^{1/n}}{1+x^2} \ \mathrm{d}x$ +15 Rain droplets falling on a table +5 Expected length of a game of Kings +10 why is variance so famous that it appears in almost half of the probability textbook?

 1 why is variance so famous that it appears in almost half of the probability textbook? 0 Given that $X_i$ are symmetric about 0 and iid with $E[|X_i|]=\infty$. Show that $\frac{S_n}{n}=\frac{X_1+\dots+X_n}{n}$ does not converge to 0.

### Tags (13)

 1 probability × 3 0 probability-theory × 2 1 statistics 0 card-games 1 math-history 0 recreational-mathematics 0 calculus × 2 0 geometric-probability 0 integration × 2 0 complex-analysis

### Accounts (14)

 Mathematics 399 rep 315 Ask Different 173 rep 5 MathOverflow 146 rep 3 Ask Ubuntu 108 rep 4 Vi and Vim 104 rep 4