T-Level - RC-3 - Wk8 - Lesson 1 - Plenary

1. What is the main purpose of data visualisation?

• To make data harder to interpret
• To make data more readable and understandable
• To collect new data from users
• To remove important insights from data

2. Which visualisation is best for showing trends over time?

• Pie Chart
• Line Graph
• Bar Chart
• Heat Map

3. What is a key characteristic of a pie chart?

• It shows relationships between multiple variables
• It shows proportions and percentages
• It shows numerical values in a table
• It is best for showing trends over time

4. Which type of visualisation is commonly used for real-time data monitoring?

• Pie Chart
• Line Graph
• Dashboard
• Infographic

5. What is an advantage of using a bar chart?

• It shows exact data values better than tables
• It makes comparing categories easy
• It is only useful for small datasets
• It does not allow easy comparison between values

6. When would a heat map be the best choice?

• When comparing sales between two years
• When showing intensity or density of data
• When displaying percentages
• When listing raw numerical data

7. What is a common mistake in data visualisation?

• Using clear labels and titles
• Using too many colours or cluttered labels
• Keeping visualisations simple and clear
• Using the right chart for the dataset

8. Which visualisation method is best for showing geographical data?

• Bar Chart
• Geographical Map
• Table
• Infographic

9. What is the main advantage of a dashboard?

• It provides real-time updates and summaries
• It is the easiest visualisation method to create
• It only allows static data representation
• It is better than all other visualisations

10. Which of the following is NOT a common data visualisation method?

• Heat Map
• Dashboard
• Pie Chart
• Spreadsheet