Data Science and Analytics - Marathon Quiz

Which chart type is most appropriate for showing the distribution of a single numerical variable?

• Line Chart
• Bar Chart
• Histogram
• Pie Chart
• All of the above

What is the primary purpose of a scatter plot?

• To show parts of a whole
• To compare categories
• To show relationships between two variables
• To display time-series data
• All of the above

Which visualization is best suited for showing trends over time?

• Pie Chart
• Line Chart
• Scatter Plot
• Bar Chart
• All of the above

What is a common use of a heatmap?

• To show parts of a whole
• To display geographical data
• To show the distribution of data
• To visualize data density and variations
• All of the above

Which of the following is a key principle of effective data visualization?

• Maximizing data-ink ratio
• Using as many colors as possible
• Avoiding the use of legends
• Displaying all possible data points at once
• All of the above

What does a box plot primarily show?

• The distribution of a categorical variable
• The relationship between two numerical variables
• The distribution and outliers of a numerical variable
• The trend over time
• All of the above

Which concept refers to the simplification of data to avoid overloading the viewer with too much information?

• Data Cleaning
• Data Aggregation
• Data Normalization
• Data Reduction
• All of the above

What is the main purpose of using color in data visualization?

• To make the chart more attractive
• To differentiate data points and highlight key areas
• To fill empty space in the chart
• To confuse the viewer
• All of the above

Which of the following best describes the concept of "storytelling with data"?

• Adding as many visual elements as possible to a chart
• Visually appealing representation
• Presenting raw data without any interpretation
• Focusing only on numerical analysis
• All of the above

What is a common mistake to avoid in data visualization?

• Using consistent scales and colors
• Overloading the chart with too much information
• Keeping the design simple and clear
• Using labels and legends for clear
• All of the above