Download and install R and Studio and perform initial setup and navigation Learn the required content of this unit, and conduct your research to answer the following questions: What is a tactor variable? When would vou want to use a tactor variable? What is unique about a numeric variable? Why would you use a data frame over a vector to store vour data? Lists are the most complex ot the r data tvpes. what is the practica benent of a list that stores a string. a numeric vector. and a matrix? Give realite examples