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Welcome to the Data Types and Dataset Reading MCQs Page

Dive deep into the fascinating world of Data Types and Dataset Reading with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Types and Dataset Reading, a crucial aspect of R Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Types and Dataset Reading, 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 Data Types and Dataset Reading. 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 Data Types and Dataset Reading. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Types and Dataset Reading MCQs | Page 7 of 10

Explore more Topics under R Programming

Q61.
Computation with vectors is achieved using an element-by-element operation for avoiding _________

a.

Loops

b.

Functions

c.

Packages

d.

Interfaces

Discuss
Answer: (a).Loops
Q62.
To bind a row onto an already existing matrix, the ______ function can be used.

a.

Rbind

b.

Sbnd

c.

Gbind

d.

Sbind

Discuss
Answer: (a).Rbind
Q63.
Which of the following is a 3-dimensional dataset?

a.

Eris

b.

Iris

c.

Toris

d.

Iris

Discuss
Answer: (d).Iris
Q64.
Which dimension corresponds to the explanatory variables collected for each species?

a.

First

b.

Second

c.

Third

d.

Fifth

Discuss
Answer: (b).Second
Q65.
Using the ________ vector, we create a species factor and bind it to the columns of iris.df.

a.

snames

b.

rnames

c.

jnames

d.

fnames

Discuss
Answer: (a).snames
Q66.
Accessing elements is achieved through a process called ________

a.

Indexing

b.

Outdexing

c.

Highlighting

d.

Scrapping

Discuss
Answer: (a).Indexing
Q67.
Which are indexed by either row or column using a specific name or number?

a.

Datasets

b.

Data frames

c.

Data

d.

Functions

Discuss
Answer: (b).Data frames
Q68.
What should we use to access elements with a value greater than five?

a.

Subsetting commands

b.

Use functions

c.

Packages

d.

Interfaces

Discuss
Answer: (a).Subsetting commands
Q69.
Lists can be created using the _______ function.

a.

Matrix.li

b.

Matrix.lists

c.

Lists.matric

d.

List

Discuss
Answer: (d).List
Q70.
First component of the list can be accessed by _____________

a.

Name of the component

b.

List name

c.

Function

d.

Package

Discuss
Answer: (a).Name of the component
Page 7 of 10

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