R Programming Quiz


Play this quiz that will help you to excel in R certification exams, placements etc. This R programming quiz consist of 10 questions that you need to solve in 10 minutes. We’ve specially designed this quiz so that you can quickly acquaint to the pattern of questions you can be asked in placement drives, certification exams etc. This test enables you to assess your knowledge of R programming.

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R MCQs

Practice R Programming MCQ Questions, which will help you to understand R Programming language and will help in developing statistical softwares.

R Quiz

Try Free R Quiz, to start a quiz you need to login first, after login you will get start quiz button and then by clicking on that you can start quiz. You will get 10 Minutes to answer all questions.

R Quiz

1. What will be the output of the following R code?

install.packages(c("devtools", "roxygen2"))

Develops the tools
Installs the given packages
Exits R studio
Nothing happens

2. .library() is not useful when developing a package since you have to install the package first.

TRUE
FALSE
Can be true or false
Can not say

3. The mapply() function is a multivariate apply of sorts which applies a function in parallel over a set of arguments.

TRUE
FALSE
Can be true or false
Can not say

4. What will be output for the following code?

print(mean(25:82))

1526
53.5
50.5
55

5. Which of the following contains functions for processing uniaxial minute-to-minute accelerometer data?

accelerometry
abc
abd
anc

6. What will be output for the following code?

> paste("a", "b", se = ":")

a+b
a:b
a-b
None of the above

7. Which of the following is valid body of split function?

function (x, f)
function (x, f, drop = FALSE, …)
function (x, drop = FALSE, …)
function (drop = FALSE, …)

8. What will be the output of log (-5.8) when executed on R console?

NA
NAN
0.213
Error

9. Which loop executes a sequence of statements multiple times and abbreviates the code that manages the loop variable?

for
while
do-while
repeat

10. _______ function returns a vector of the same size as x with the elements arranged in increasing order.

sort()
orderasc()
orderby()
sequence()

Results