Data Visualisation

What is the capital of France?

• Helsinki

• Lisbon

• Rome

• Paris

What are pie charts most useful for displaying?

• average values

• percentages

• frequencies

• range

What is the primary utility of line charts?

• for finding peaks in data

• to measure the mean and standard deviation

• to display change over time

• to measure categorical counts

Which type of data visualization should you use to represent frequencies for a continuous variable?

• Bar graph

• Histogram

• Scatter plot

• Pie chart

BI applications gather data from which of the following?

• Data Warehouse

• Data Mart

• Database

• Both data mart and data warehouse

Which of the following are direct benefits of BI?

• decision making

• artificial intelligence

• data mining

• all of the above

 

__ is a process where operations like data extraction, transformation, and loading are executed

• Data Integration

• ETL

• Data Mining

• All of the above

Temperature feature (in degrees celcius) is a __ data type?

• Discrete

• Continuous