What is data cleaning?

Data Cleaning Techniques

Quiz
•
Computers
•
University
•
Easy
Wahyuni _
Used 1+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A process to improve data quality
A method to analyze data
A technique to visualize data
A way to store data
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of identifying and removing duplicate entries?
To ensure each observation appears once
To increase data size
To enhance data visualization
To improve data storage
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the methods for handling missing values?
Imputation and deletion
Visualization and analysis
Storage and retrieval
Cleaning and formatting
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the goal of correcting typographical errors?
To ensure consistency in data entries
To increase data size
To enhance data visualization
To improve data storage
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does data normalization involve?
Standardizing data formats
Increasing data size
Visualizing data
Storing data efficiently
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of data transformation?
To make data suitable for statistical analysis
To increase data size
To enhance data visualization
To improve data storage
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the method for detecting outliers?
Visual analysis using boxplots
Increasing data size
Storing data efficiently
Cleaning and formatting
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