I want to create the following table without the estimated value(only two columns), I'm unsure what to do:

[![enter image description here](https://i.stack.imgur.com/BgagF.jpg)](https://i.stack.imgur.com/BgagF.jpg)

**EDIT:**

Since my table is longer than the one in the picture, is there a way to split it into two(4 columns) like:

Parameter Description | Parameter Description \[1ex]
A blah blah blah | \mu blah blah blah