# This is where I make the most of my Hello World post!

## MathJax playground.

Some general probability or statistics notation: $p(x)$. Then, the parameterized distributions with \begin{align}:

\begin{align} p(x) &= \mathcal{N}(x \mid \mu, \sigma^2) \nonumber \\ &\propto f(x) \tag{1}\label{Einstein}. \\ \end{align}

## Interative data playground.

Click and drag one of the circles in the figure below!

Now, here is a link to equation \eqref{Einstein}.