In Data Science, what is the term for the process of reducing the dimensionality of a dataset while preserving information?

In machine learning, what is the term for the process of reducing the dimensionality of data while preserving as much information as possible?

A

Data Reduction

B

Data Encoding

C

Feature Selection

D

Data Normalization

In data modeling, what is the term for the process of reducing the dimensionality of data while preserving its important features?

A

Data Imputation

B

Data Reduction

C

Feature Engineering

D

Data Normalization

What is the term for the process of reducing the dimensionality of data while preserving as much of the variance as possible?

A

Data imputation

B

Data normalization

C

Data aggregation

D

Principal Component Analysis (PCA)

Which of the following type of data science question is missing in the figure?
Introduction to Data Science mcq question image

A

Correlative

B

Exploratory

C

Relative

D

None of the mentioned

Which of the following block information is odd man out in the below figure?
Data Science Miscellaneous mcq question image

A

Scatterplots

B

5 number summary

C

2D Graph

D

None of the mentioned

Which of the the following graphic device information is odd man out in the below figure?
Data Science Miscellaneous mcq question image

A

quartz

B

window

C

unix

D

x11

Which of the following design term is perfectly applicable to the below figure?
Introduction to Data Science mcq question image

A

Correlation

B

Confounding

C

Causation

D

None of the mentioned

Which of the following term is appropriate to the below figure?
Introduction to Data Science mcq question image

A

Large Data

B

Big Data

C

Dark Data

D

None of the mentioned

Data Products shown in the below figure is built using which programming language?
Introduction to Data Science mcq question image

A

S

B

Python

C

R

D

Java

What is the term for the process of reducing the dimensionality of data while retaining its most important features?

A

Data Imputation

B

Data Scaling

C

Data Reduction

D

Data Normalization

In Data Science, what is the term for the process of reducing the dimensionality of a dataset while preserving information?

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