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DM1 test 24-25

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Assessment

Quiz

Computers

University

Practice Problem

Medium

Created by

Geeta Gupta

Used 14+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the functions of Data Mining?

  1. Prediction and characterization

  1. Association and correctional analysis classification

  1. Cluster analysis and Evolution analysis

  1. All of the above

2.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

K-Means clustering is what type of clustering algorithm?

Distance based

Partition based

Density based

Hierarchical

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Given two objects represented by tuples (3, 5) and (2, 0). What is the Euclidean distance between two objects?

5.1

5

6

None of the above

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Euclidean distance is also known as

L-1 Norm

L-2 Norm

L-3 Norm

None of the above

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

3. What is the purpose of data preprocessing in data mining?

To transform raw data into a suitable format for analysis

To summarize data in a compact form

To generate new data from existing data

To visualize data for easier analysis

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Major Challenge in Data Mining is

Data Extraction

Data Security

Data Scalability

Data Quality

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The heart of data mining is

 

Finding patterns

Machine learning

Artificial Intelligence

Data points

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