# The Law of the Large Numbers
> [!tip] Strong Law
>
> $
> P(\bar X_n \to \mu) = 1
> $
> [!tip] Weak Law
>
> For all $\epsilon > 0$, $P(|\bar X_n - \mu| > \epsilon) \to 0$ as
> $n \to \infty$.
>
> This is the _convergence in probability_.
Every time we perform simulations, we are assuming LLN implicitly.
To understand this concept, consider the proportion of heads in a series of coin
tosses.
- SLLN suggests that $\bar X_1$, $\bar X_2$, ... crystallizes into ==a sequence
which converge to $1/2$==.
- WLLN suggests that for $P(\bar X_n > 1/2)$ ==can be made as close to $0$ as
possible by increasing $n$==.
The distribution of $\bar X_n$ along the way of becoming a constant is given by
[[clt|Central Limit Theorem]].
[[recurrence]]