Law of large numbers

Law of large numbers is theorem from the course of [theory of probability. The theorem states that the sum of independent identically distributed random variable approaches the normal distribution.

The rate of this approach is determined by the Bernoulli law of large numbers (The formulation of the theorem is attributed to Jacob Bernoulli ) .

This article is to deal with some strange behavior of MathJax. While the technical error is analysed, use wikipedia .

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For some reason, the formula typing below fails:

$\displaystyle \lim_{n_\rightarrow \infty \frac{1}{\ln(N)} \sum_{n=1}^{N} \frac{1}{n} ... =\erfc(t) $