Applied

Setup

A$.$ Load libraries

Load the wooldridge library, along with knitr. Then, create an object called wage $2$ using the following code: wage $2$ wooldridge:iwage $2.$ No need to write an answer in text afterwards, just the code will do$.$

B$.$ Show installed packages

Run the code installed.packages $0[,c(1,3)].$ Here, the function installed.packages$0$ returns a matrix with a lot of information on what packages you have installed. We subset to just column $1$ and $3,$ the name and version.

$2148$ words $[$x English $($United States$)$

Focus

$14$