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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 4 of 10

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Q31.
All columns in a matrix must have the same mode and the _________ length.

a.

Different

b.

Same

c.

May be the same

d.

May be different

Discuss
Answer: (b).Same
Q32.
___________ provides optional labels with the columns and rows.

a.

Disnames

b.

Dimnames

c.

Denmes

d.

Demnesd

Discuss
Answer: (b).Dimnames
Q33.
________ are similar to matrices but can have more than two dimensions.

a.

Functions

b.

Packages

c.

Arrays

d.

Columns

Discuss
Answer: (c).Arrays
Q34.
Which is more general than a matrix, in that different columns can have different modes?

a.

Data types

b.

Data frames

c.

Data sets

d.

Databases

Discuss
Answer: (c).Data sets
Q35.
An ordered collection of objects or components are called ________

a.

Data frames

b.

Datasets

c.

Databases

d.

Lists

Discuss
Answer: (d).Lists
Q36.
The ________ stores the nominal values as a vector of integers in the range of 1 to unique values in the nominal variable.

a.

Factor

b.

Matrix

c.

Lists

d.

Functions

Discuss
Answer: (a).Factor
Q37.
An ordered factor is used to represent an __________

a.

Ordinal variable

b.

Simple variable

c.

Coordinal variable

d.

Biordinal variable

Discuss
Answer: (a).Ordinal variable
Q38.
On what basis of a variable, OS allocates memory and decides what can be stored in the reserved memory?

a.

Data bases

b.

Data sets

c.

Data types

d.

Lists

Discuss
Answer: (c).Data types
Q39.
The data type of the R-object becomes the data type of the ________

a.

Functions

b.

Packages

c.

Variables

d.

Lists

Discuss
Answer: (c).Variables
Q40.
Which function is used to combine the elements into a vector?

a.

C()

b.

D()

c.

E()

d.

F()

Discuss
Answer: (a).C()
Page 4 of 10

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