I have a song by a popular musician, I have the lyrics stored in a .txt file, I also have the audio mp3 form of the music. Recently, I got the MP4 video version.
Which is likely to consume the most storage capacity?
Which is likely to consume the least storage capacity?
Which of the following is NOT a common data type used in data analysis?
Integer
String
Function
Boolean
Which of the following is a form of data cleaning?
Select all that apply (2)
To delete unnecessary files from a computer
To remove inaccurate or incomplete data for better analysis
To change the data format into binary code
To make data analysis slower for security purposes
Replacing missing data with averages?
Why is data bias a concern in data analysis?
It makes data analysis easier
It leads to misleading conclusions and unfair decisions
It improves the accuracy of machine learning models
It speeds up data processing
What is the main purpose of data visualization?
To store data securely
To make data easier to interpret by displaying it graphically
To delete unnecessary data points
To encrypt data for security reasons
Which of the following is NOT a common type of data visualization?
Bar chart
Line graph
Scatter plot
Flowchart
How can a data visualization be misleading?
By using incorrect scales
By including too much accurate data
By labeling all data points correctly
By using multiple colors
What is the best definition of big data?
A large dataset that requires special tools to process and analyze
Data that is stored in a physical warehouse
A dataset that only contains numerical values
A type of programming language used for data science
Which of the following is an ethical issue in data analysis?
Using personal data without consent
Sorting data in ascending order
Using bar charts for visualization
Removing duplicate data entries
Why is data privacy important?
To ensure personal and sensitive information is protected from unauthorized access
To make data analysis more expensive
To remove data from storage devices
To ensure that data is always public
What is data in the context of data analysis? Select all that apply (2)
I. Computer readable information
II. Information collected about the physical world