Create a new variable with earnings conditional on working (missing for non-employed) and calculate the means of this by the group as well. Note: We need a Rmarkdown code for this one?

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A: Dear learner, hope you are doing well, I will try my best to answer this question. Thank You!!

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jQuery and JavaScript

JavaScript is a client-side programming language used to create dynamic web pages and animations. It uses just-in-time compilation which means it is read line-by-line, checked for correctness of syntax and executed immediately.