Which type of chart is commonly used to represent hierarchical data with rectangular blocks?
A. Scatter plot
B. Bar chart
C. Treemap
D. Heatmap
What does the term "data-driven storytelling" mean in the context of data visualization and reporting?
A. Using data to enhance the narrative
B. Telling stories without data
C. Adding chartjunk
D. Ignoring data visualization
In a line chart, what does the x-axis typically represent?
A. Categories or time intervals
B. Numeric values
C. Frequency of data points
D. Color encoding
Which data visualization type is suitable for displaying the distribution of a single continuous variable along with its summary statistics?
A. Histogram
B. Box plot
C. Scatter plot
D. Line chart
What is the primary purpose of a "tooltip" in an interactive data visualization?
A. Provides additional information
B. Adds decorative elements
C. Represents the main data
D. Explains the legend
Which data visualization type is often used to display hierarchical data structures as a series of branching nodes?
A. Scatter plot
B. Bar chart
C. Tree diagram
D. Heatmap
What is the primary purpose of a "title" in a data visualization?
A. Provides a concise description of the chart
B. Adds decorative elements
C. Represents the main data
D. Explains the legend
In data visualization, what does "data-ink ratio" refer to?
A. Proportion of ink used to represent data in a chart
B. Data cleaning
C. Choosing a color palette
D. Data summarization
Which type of data visualization is used to display the relationship between three variables in a 3D space?
A. Scatter plot matrix
B. Treemap
C. Bubble chart
D. Heatmap
What is the primary goal of storytelling in data visualization?
A. To engage and inform the audience
B. To add chartjunk
C. To make the chart more complex
D. To slow down data analysis
