Hope this problem might get resolved before someone closes this.
The problem is that I don't know how to type using Mathjax so what should I do in this situation?
The things which I think I can do in this situation is:-
-(1)- Have faith in luck - by this, I mean that, post my question without using Mathjax and hoping that before it gets closed, someone answers it.
-(2)- learn Mathjax:-I know if anyone answers this question, most probably(orthodox) they will choose this one, I don't know from where to start, and How much time will it take? so if anyone picks this he/she must care that they should also answer this.
-(3)- any other alternative if you have in place of the above two if anyone has. Thank you.
$x^2-1=3$
gives $x^2-1=3$. Then build up from there: for example using$\frac{\sigma^2_X}{\mu}$
gives $\frac{\sigma^2_X}{\mu}$ and so on $\endgroup$