What is data cleaning?

Data Cleaning Techniques

Quiz
•
Computers
•
University
•
Easy
Wahyuni _
Used 1+ times
FREE Resource
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
Create a free account and access millions of resources
Similar Resources on Quizizz
15 questions
Quick Revision H466 #1

Quiz
•
12th Grade - University
11 questions
Cloud Computing

Quiz
•
KG - Professional Dev...
19 questions
Data Types Java Concepts

Quiz
•
University
10 questions
Cloud Computing

Quiz
•
University
18 questions
Pictoria Quiz

Quiz
•
University
20 questions
Skill Competition Quiz 2024

Quiz
•
10th Grade - University
12 questions
Computer Organization and Architecture

Quiz
•
University
10 questions
AWS Glue

Quiz
•
University
Popular Resources on Quizizz
15 questions
Multiplication Facts

Quiz
•
4th Grade
25 questions
SS Combined Advisory Quiz

Quiz
•
6th - 8th Grade
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
40 questions
SOL: ILE DNA Tech, Gen, Evol 2025

Quiz
•
9th - 12th Grade
20 questions
NC Universities (R2H)

Quiz
•
9th - 12th Grade
15 questions
June Review Quiz

Quiz
•
Professional Development
20 questions
Congruent and Similar Triangles

Quiz
•
8th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade