R Programming Quiz Questions and Answers 18

This post is about “R Programming Quiz Questions and Answers”. There are 20 multiple-choice type questions from R programming covering topics related to the output of different R commands, R console, matrices, data frames, factors, vectors, R objects, and different operations on R objects. Let us start with R Programming Quiz Questions and Answers.

Online Multiple Choice Questions about R Programming Language

1. Which of the following function can be used to create a vector having repeated values

 
 
 
 

2. The output of the seq(1, 10, 2) is

 
 
 
 

3. What will be the output of the following
x <- vector("numeric", length = 10); print(x)

 
 
 
 

4. What is the data type of vector $a$ if a <- c(1, “m”, FALSE)

 
 
 
 

5. What would be the output of the following code?
x <- 1:4
y <- 6:9
z <- x + y
print(z)

 
 
 
 

6. The Vectors, data frames, or matrices containing decimal values can be converted to integers using

 
 
 
 

7. When we compare two vectors element by element the resultant outcome is a

 
 
 
 

8. The following command will find the 60th percentile for the variable $disp$

 
 
 
 

9. What will be the output of the following lines of code?
x <- 31
if (x %% 2 == 0){
print("X is even")
}else {
print("X is odd")
}

 
 
 
 

10. In R, object name cannot start with

 
 
 
 

11. Which command will create a matrix of the first 9 numbers in 3 rows and 3 columns?

 
 
 
 

12. To perform one-way Analysis of variance, one can use function

 
 
 
 

13. The multiplication of two matrices $A$ and $B$ can be performed in R using the operator

 
 
 
 

14. What will be the output of the following
X <- factor(c(“yes”, “yes”, “yes”, “no”, “yes”, “no”, “no”)
table(X)

 
 
 
 

15. What is the output of 1:4 + 4:1

 
 
 
 

16. What would be the output of 1:5 + 5:1.

 
 
 
 

17. The output of seq(10, 1, -2) is

 
 
 
 

18. R console is a tool that is used to write (insert) standard

 
 
 
 

19. All columns in a matrix must have the

 
 
 
 

20. What will be the output of the following code
X <- factor(c("m", "m", "m", "f", "m", "f", "f")
table(X)

 
 
 
 

R FAQS R Programming Quiz Questions and Answers

R Programming Quiz Questions and Answers

  • The output of seq(10, 1, -2) is
  • What will be the output of the following lines of code? x <- 31 if (x %% 2 == 0){ print(“X is even”) }else { print(“X is odd”) }
  • What would be the output of 1:5 + 5:1.
  • What will be the output of the following x <- vector(“numeric”, length = 10); print(x)
  • What would be the output of the following code? x <- 1:4 y <- 6:9 z <- x + y print(z)
  • What will be the output of the following X <- factor(c(“yes”, “yes”, “yes”, “no”, “yes”, “no”, “no”) table(X)
  • The output of the seq(1, 10, 2) is
  • What will be the output of the following code X <- factor(c(“m”, “m”, “m”, “f”, “m”, “f”, “f”) table(X)
  • What is the output of 1:4 + 4:1
  • R console is a tool that is used to write (insert) standard
  • The following command will find the 60th percentile for the variable $disp$
  • The multiplication of two matrices $A$ and $B$ can be performed in R using the operator
  • Which command will create a matrix of the first 9 numbers in 3 rows and 3 columns?
  • When we compare two vectors element by element the resultant outcome is a
  • Which of the following function can be used to create a vector having repeated values
  • The Vectors, data frames, or matrices containing decimal values can be converted to integers using
  • What is the data type of vector $a$ if a <- c(1, “m”, FALSE)
  • All columns in a matrix must have the
  • To perform one-way Analysis of variance, one can use function
  • In R, object name cannot start with
R Programming Quiz Questions and Answers

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