Which data visualization type is suitable for comparing proportions of different categories in a dataset?
A. Scatter plot
B. Bar chart
C. Line chart
D. Histogram
What is the purpose of a "legend" in a data visualization?
A. Explains the meaning of colors or symbols in a chart
B. Provides data context
C. Represents the main data
D. Adds decorative elements
What type of chart is often used to show trends in data over time, such as stock prices or temperature changes?
A. Scatter plot
B. Bar chart
C. Line chart
D. Pie chart
What is the primary advantage of using interactive data visualizations?
A. Enhances engagement
B. Increases data accuracy
C. Reduces data complexity
D. Slows down data analysis
In data visualization, what does "annotation" refer to?
A. Adding notes or labels to a chart
B. Cleaning the dataset
C. Choosing a color palette
D. Data summarization
What is the primary purpose of data visualization in data science?
A. Summarizing data
B. Communicating insights
C. Cleaning data
D. Storing data
Which data visualization type is best suited for showing the distribution of a single continuous variable?
A. Bar chart
B. Scatter plot
C. Histogram
D. Pie chart
What is the term for a data visualization that shows the relationship between two continuous variables?
A. Heatmap
B. Scatter plot
C. Bar chart
D. Pie chart
Which color scheme is often used for sequential data in data visualizations to represent a progression from low to high values?
A. Rainbow
B. Viridis
C. Red-Blue
D. Random
What does the term "chartjunk" refer to in data visualization?
A. Non-essential or distracting elements in a chart
B. Accurate data representation
C. Data cleaning
D. Data analysis