MCQs on Introduction to R | R

200+ Free R Language MCQ Quiz |Basics| MCQs on R Programming MCQs on Introduction to R | R

Discover the fundamentals of R, a powerful programming language for statistical computing and data analysis. Learn about its history, key features, installation process, basic syntax, and environment setup.

History and Features of R

Who developed the R programming language?
a) John Chambers and Ross Ihaka
b) Dennis Ritchie
c) Guido van Rossum
d) James Gosling
In which year was R first released?
a) 1988
b) 1995
c) 2000
d) 1993
R is primarily used for which of the following purposes?
a) Web development
b) Statistical computing and data analysis
c) Mobile app development
d) Game development
Which of the following is NOT a feature of the R programming language?
a) High-level programming language
b) Open-source
c) Primarily used for machine learning
d) Cross-platform support
R is an implementation of which programming language?
a) C
b) Scheme
c) S
d) Java
What type of environment does R provide for statistical computing?
a) Development-only
b) An interactive programming environment
c) A browser-based interface
d) A command-line interface only
Which of the following is a major advantage of R?
a) Integrated with databases only
b) Built-in libraries for data analysis
c) Excellent for mobile development
d) Mainly used for game development
Which statistical technique does R support natively?
a) Linear regression
b) Quantum computing
c) Parallel programming
d) Web scraping
What does the acronym R stand for?
a) Reliable
b) Random
c) Reproducible
d) It does not stand for anything specifically
How is R commonly used in the field of academia?
a) Web programming and development
b) Data analysis, statistical modeling, and research
c) Mobile app development
d) Video game design

Installing R and RStudio

What is RStudio?
a) An IDE for R programming
b) A web-based programming tool
c) A package manager for R
d) A Python framework
What is the first step in setting up R for use?
a) Download RStudio
b) Install R
c) Install Python
d) Set up the Jupyter Notebook
Which operating systems does R support?
a) Windows only
b) Linux and Windows only
c) Windows, Linux, and macOS
d) Only macOS
How do you install R on a Windows machine?
a) Download the .deb file
b) Download the .dmg file
c) Download the .exe installer
d) Use a terminal command to install
After installing R, how can you run it on your computer?
a) From the command line using R
b) By typing run R in the start menu
c) From a graphical interface only
d) Using a web browser
What is the purpose of RStudio?
a) A text editor for R scripts
b) A platform to manage R packages
c) An interactive IDE for R
d) A tool to run R on the web
How can you install R packages in RStudio?
a) By clicking a button in the toolbar
b) Using the install.packages() function
c) By downloading directly from GitHub
d) Using the run R command
What is the RStudio Console used for?
a) To execute R code
b) To install R packages
c) To debug R programs
d) To access help documentation
Which of the following can be done in RStudio?
a) Write R scripts
b) Visualize data
c) Run R code interactively
d) All of the above
What is the default directory for RStudio projects?
a) The user’s Documents folder
b) A custom project folder
c) The R home directory
d) The Desktop folder

Basic Syntax and Environment Overview

In R, which symbol is used for assignment?
a) =
b) :=
c) <-
d) ->
Which of the following is the correct way to create a vector in R?
a) vector <- [1, 2, 3, 4]
b) vector <- c(1, 2, 3, 4)
c) vector := [1, 2, 3, 4]
d) vector <- (1, 2, 3, 4)
How do you comment a line of code in R?
a) # This is a comment
b) // This is a comment
c) /* This is a comment */
d) -- This is a comment
Which of the following functions is used to print output in R?
a) echo()
b) print()
c) out()
d) display()
How do you check the version of R installed on your system?
a) R -v
b) version()
c) R.version()
d) check_version()
What is the RStudio Environment pane used for?
a) To show all installed R packages
b) To manage your active R scripts
c) To show variables, data frames, and functions in memory
d) To run R code interactively
In R, which function is used to create a data frame?
a) data.frame()
b) create.data()
c) data()
d) df()
Which of the following is the proper way to display a summary of a data frame in R?
a) summary(data_frame)
b) head(data_frame)
c) display(data_frame)
d) data_frame.summary()
Which R function is used to read a CSV file?
a) read.table()
b) read.csv()
c) import.csv()
d) load.csv()
What is the correct way to install an R package?
a) install.packages("package_name")
b) download("package_name")
c) library.install("package_name")
d) install("package_name")

Answer Key

QNo	Answer (Option with text)
1	a) John Chambers and Ross Ihaka
2	d) 1993
3	b) Statistical computing and data analysis
4	c) Primarily used for machine learning
5	c) S
6	b) An interactive programming environment
7	b) Built-in libraries for data analysis
8	a) Linear regression
9	d) It does not stand for anything specifically
10	b) Data analysis, statistical modeling, and research
11	a) An IDE for R programming
12	b) Install R
13	c) Windows, Linux, and macOS
14	c) Download the `.exe` installer
15	a) From the command line using `R`
16	c) An interactive IDE for R
17	b) Using the `install.packages()` function
18	a) To execute R code
19	d) All of the above
20	b) A custom project folder
21	c) `<-`
22	b) `vector <- c(1, 2, 3, 4)`
23	a) `# This is a comment`
24	b) `print()`
25	c) `R.version()`
26	c) To show variables, data frames, and functions in memory
27	a) `data.frame()`
28	a) `summary(data_frame)`
29	b) `read.csv()`
30	a) `install.packages("package_name")`

Post Views: 44

Back to Course

Next Lesson