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Welcome to the Control Structures and Functions MCQs Page

Dive deep into the fascinating world of Control Structures and Functions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Control Structures and Functions, a crucial aspect of R Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Control Structures and Functions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within R Programming.

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Check out the MCQs below to embark on an enriching journey through Control Structures and Functions. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of R Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Control Structures and Functions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Control Structures and Functions MCQs | Page 6 of 13

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Q51.
Two vectors M and N are defined as M <- c(3, 2, 4) and N <- c(1, 2). What will be the output of vector Z that is defined as Z <- M*N.

a.

Z <- (3, 2, 4)

b.

Z <- (3, 6, 4)

c.

Z <- (3, 4, 5)

d.

Z <- (3, 4, 4)

Discuss
Answer: (d).Z <- (3, 4, 4)
Q52.
How missing values and impossible values are represented in R language?

a.

NA

b.

NAN

c.

NA & NAN

d.

Not Exist

Discuss
Answer: (c).NA & NAN
Q53.
CRAN package ecosystem has more than ______ packages.

a.

5000

b.

4000

c.

6000

d.

8000

Discuss
Answer: (c).6000
Q54.
Which function in R language is used to find out whether the means of 2 groups are equal to each other or not?

a.

f.tests ()

b.

l.tests ()

c.

t.tests ()

d.

not exist

Discuss
Answer: (c).t.tests ()
Q55.
__________ is the best way for communicating the results of data analysis using the R language.

a.

Single document

b.

Files

c.

Structures

d.

Loadings

Discuss
Answer: (a).Single document
Q56.
How many types of data structures does R language have?

a.

2

b.

3

c.

5

d.

8

Discuss
Answer: (a).2
Q57.
__________ is the easiest method for reshaping the data before analysis.

a.

Transpose()

b.

Structure()

c.

Package

d.

Function

Discuss
Answer: (a).Transpose()
Q58.
___________ function is used to apply an expression for a given dataset.

a.

This()

b.

With()

c.

Unwith()

d.

That()

Discuss
Answer: (b).With()
Q59.
__________ package is used to speed up data frame management code.

a.

Data.table

b.

Dplyr

c.

Table

d.

Data.dplyr

Discuss
Answer: (b).Dplyr
Q60.
Which package can be integrated with dplyr for large fast tables?

a.

Table

b.

Data, dplyr

c.

Data.table

d.

Dplyr.table

Discuss
Answer: (c).Data.table
Page 6 of 13

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