Data PreparationThere are some important variables that you have been asked to analyze in this problem set. Identify and explain these variables. Address the following questions in your analysis:· What are the important variables in this data set?· How many rows and columns are present in this data set?Answer the questions in a paragraph response. Remove all questions and this note before submitting! Do not include R code in your report.For more information on Data Preparation check on:https://en.wikipedia.org/wiki/Data_preparation