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WorksheetsPre-Data Assessment
Total questions: 10
Worksheet time: 5mins
What is the most basic definition of data?
Insights that help make decisions
Computer programs and software
Raw facts, figures, and symbols without meaning
Graphs and charts in a report
Which of these is an example of quantitative data?
Customer feedback comments
Product review ratings (1 to 5 stars)
The colour of a car
A person's name
What do we call data that has been processed, organised, and given context to make it useful?
Raw data
Information
Big Data
Metadata
"Customer Age" recorded as "Young," "Middle-aged," or "Senior" is an example of what type of data?
Numerical data
Categorical data
Continuous data
Primary data
What is the main purpose of a database?
To perform complex calculations
To create visual charts
To store and organise structured data for easy access and management
To connect to the internet
Which term describes data collected directly by you for your specific purpose (e.g., through a survey you conducted)?
Secondary data
Public data
Primary data
Sampled data
What does a "row" typically represent in a simple spreadsheet or database table?
A characteristic or attribute (like "Price" or "City")
A single record or instance (like one customer or transaction)
The data type (like text or number)
A calculation formula
What is the key characteristic of "Big Data" often described by the '3 Vs'?
Value, Verify, Visualise
Volume, Velocity, Variety
Virtual, Vast, Variable
Verified, Validated, Valuable
Cleaning data primarily involves:
Making the data look more colourful.
Storing it on a faster computer.
Correcting errors, removing duplicates, and fixing formatting issues.
Sending the data to more people.
Which of these is a common tool for basic data analysis and visualisation that uses spreadsheets?
Microsoft Word
Adobe Photoshop
Microsoft Excel or Google Sheets
Windows Explorer
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