R Language Quiz

MCQs R Programming Language 2

by

This quiz “MCQs R Programming Language” will help you to check your ability to execute some basic operations on objects in the R language, and it will also help you to understand some basic concepts. This MCQs R Programming Language Quiz will also improve computational understanding. Let us start with the test “MCQs R Programming Language” with Answers.

Online MCQs about R Programming Language.

1. The R language is a dialect of which of the following programming languages?

 
 
 
 
 

2. _________ is a function in R to get the number of observations in a data frame

 
 
 
 

3. A data analyst writes the code summary(penguins) to display a summary of the penguins dataset. Where in RStudio can the analyst execute the code?

 
 
 
 

4. If I have two vectors x <- c(1,3, 5) and y <- c(3, 2, 10), what is produced by the expression rbind(x, y)?

 
 
 
 

5. A data analyst inputs the following calculation in their R programming:
$$basket_1 * 20 + basket_2 * 15 $$
Which arithmetic operators are the analyst using?

 
 
 
 

6. What is the class of the object defined by the expression x <- c(4, “a”, TRUE)?

 
 
 
 

7. Suppose I have a vector x <- c(3, 5, 1, 10, 12, 6) and I want to set all elements of this vector that are less than 6 to be equal to zero. What R code achieves this?

 
 
 
 

8. Suppose I have a list defined as x <- list(2, “a”, “b”, TRUE). What does x[[2]] give me?

 
 
 
 

9. If I execute the expression x <- 4 in R language, what is the class of the object “x” as determined by the “class()” function?

 
 
 
 

10. Suppose I have a vector x <- 1:4 and y <- 2:3. What is produced by the expression x + y?

 
 
 
 

11. What is the benefit of using the R programming language for data analysis?

 
 
 
 

12. The definition of free software consists of four freedoms (freedoms 0 through 3). Which of the following is NOT one of the freedoms that are part of the definition?

 
 
 
 

13. What function is used to test the missing observation in a data frame

 
 
 
 

14. What should you use to assign a value to a variable in R?

 
 
 
 

15. In R language the following are all atomic data types EXCEPT

 
 
 
 

16. Which of the following examples can you use in R for date/time data?

 
 
 
 

17. Which of the following examples is the proper syntax for a function in R?

 
 
 
 

18. A key property of vectors in R language is that

 
 
 
 

19. Which of the following statements about RStudio’s integrated development environment are correct?

 
 
 
 

20. Which of the following statements about RStudio’s integrated development environment are correct?

 
 
 
 

rfaqs.com MCQs R Programming Language

MCQs R Programming Language 1

  • The R language is a dialect of which of the following programming languages?
  • The definition of free software consists of four freedoms (freedoms 0 through 3). Which of the following is NOT one of the freedoms that are part of the definition?
  • In R language the following are all atomic data types EXCEPT
  • If I execute the expression x <- 4 in R language, what is the class of the object “x” as determined by the “class()” function?
  • What is the class of the object defined by the expression x <- c(4, “a”, TRUE)?
  • If I have two vectors x <- c(1,3, 5) and y <- c(3, 2, 10), what is produced by the expression rbind(x, y)?
  • A key property of vectors in R language is that
  • Suppose I have a list defined as x <- list(2, “a”, “b”, TRUE). What does x[[2]] give me?
  • Suppose I have a vector x <- c(3, 5, 1, 10, 12, 6) and I want to set all elements of this vector that are less than 6 to be equal to zero. What R code achieves this?
  • ____________ is a function in R to get the number of observations in a data frame
  • What function is used to test the missing observation in a data frame
  • Which of the following statements about RStudio’s integrated development environment are correct?
  • Suppose I have a vector x <- 1:4 and y <- 2:3. What is produced by the expression x + y?
  • Which of the following statements about RStudio’s integrated development environment are correct?
  • A data analyst writes the code summary(penguins) to display a summary of the penguins dataset. Where in RStudio can the analyst execute the code?
  • What should you use to assign a value to a variable in R?
  • Which of the following examples is the proper syntax for a function in R?
  • What is the benefit of using the R programming language for data analysis?
  • Which of the following examples can you use in R for date/time data?
  • A data analyst inputs the following calculation in their R programming: $$basket_1 * 20 + basket_2 * 15 $$ Which arithmetic operators are the analyst using?
Learn R Language and FAQS

MCQs General Knowledge

MCQs in Statistics

Best R Language MCQs 1

by

The post is about “MCQs R Language” which will help you to check your ability to execute some basic operations on objects in the R language and will help in understanding some basic concepts. This quiz may also improve your computational understanding, and it will also help you to learn and practice R language MCQs.

Please go to Best R Language MCQs 1 to view the test

R Language MCQs with Answers

R FAQS Logo: R Language MCQs
  • R is an interpreted language.  It can be accessed through ———–?
  • Who developed R?
  • Many quantitative analysts use R as their ———– tool.
  • R is an ———– programming language?
  • R was named partly after the first names of ———– R authors.
  • Packages are useful in collecting sets into a ———– unit
  • How many types of R objects are present in the R data type?
  • Which of the following is a primary tool for debugging?
  • Which function is used to create the vector with more than one element?
  • In R Language every operation has a ———– call.
  • The ———– in R is a vector.
  • Vectors come in two parts ———– and ———–.
  • ———– and ———– are types of matrices functions?
  • Which of the following commands will find the maximum value in the vector x, excluding the missing values
  • ———– initiates an infinite loop right from the start.
  • ———– command is used to skip an iteration of a loop.
  • In 1991, R was created by Ross Ihaka and Robert Gentleman in the Department of Statistics at the University of
  • R is technically much closer to the Scheme language than it is to the original ———– language.
  • R Language functionality is divided into a number of ———–.
R Language MCQs

https://itfeature.com

https://gmstat.com