R is one of the languages that are in use and highly in demand in the market. To explain your understanding of R Programming, you can add more details or explain the language in your own terms. An interviewer gets dazzled when a candidate explains the concept based on their own understanding of it rather than reciting a memorized definition. So, below I have written a concise definition, feel free to add your own definition.
R is an open-source software developed by Ross Ihaka and Robert Gentleman. It is a programming language and a tool used for machine learning, data analysis, and statistics. This programming language can also be used in combination with other languages.