B1

Can do standard math w/ $\LaTeX$ (both display model & inline mode):
$X \sim N\left(\mu, \sigma^2 \right)$
\begin{align*} x^2 + y^2 &= 1 \\ y &= \sqrt{1 - x^2} \end{align*}
Math-Jax does not allow tabular/Center environments for tables: "Unknown environment `Tabular'".
Can do Array instead: \begin{array}{|c|c|c|} \hline cell1 & cell2 & cell3 \\ cell4 & cell5 & cell6 \\ cell7 & cell8 & cell9 \\ \hline \end{array}
Or use https://www.quicklatex.com/ to make an image:
\begin{array}{|c|c|c|} \hline \text{Set} & \text{Operation} & \text{Identity} \\ \hline \mathbb{Z} & + & 0 \\ \hline \mathbb{Q} & + & 0 \\ \hline \mathbb{R} & + & 0 \\ \hline \mathbb{Z} & \times & 1 \\ \hline \mathbb{Q} & \times & 1 \\ \hline \mathbb{R} & \times & 1 \\ \hline \end{array}

using Distributions, Random, Optim;
DGP_True = LogNormal(17,7);