Answer:
ExplanOrganizing data: observations and variables. In general, collected raw data is organized according to observations and variables . Variables represent a single measurement or characteristic for each observation.
Types of variables. The most common variables used in data analysis can be classified as one of three types of variables: nominal, ordinal, and interval/ratio.
Types of Variables in R. R does not use the terms nominal, ordinal, and interval/ratio for types of varia
