1 Hello World

Hi.

Bye.

Some mathjax:

\[ \begin{equation} \begin{aligned} P(X=1)&=\theta^{1}(1-\theta)^{1-1}, \hspace{1cm} \theta=0.7 \\ P(X=1)&=0.7*1=0.7 \\\\ P(X=0)&=0.7^{0}(1-0.7)^{1-0}\\ P(X=0)&=0.3 \end{aligned} \tag{1.1} \end{equation} \]