Training on Data Analytics and Visualization

Which type of chart is best for displaying parts of a whole?

• Line Chart

• Bar Chart

• Pie Chart

• Scatter plot

When is it appropriate to use a scatter plot?

• To show relationships between two continuous variables

• To compare categories of data

• To display cumulative data over time

• To represent hierarchical data

What does the height of bars in a bar chart represent?

• The relationship between variables

• The frequency or value of the category

• The time interval

• The distribution of data

Which chart is most suitable for visualizing the distribution of a continuous variable?

• Bar chart
  

• Line chart

• Histogram

• Pie chart

When comparing two datasets over time, which chart is most effective?

• Stacked bar chart

• Dual-axis line chart

• Scatter plot

• Doughnut chart

A radar chart is used for:

• Tracking sales performance over months

• Comparing multiple variables across different categories

• Displaying hierarchical data

• Showing frequency distributions

Which chart type is best for showing cumulative data?

• Line chart

• Pareto chart

• Stacked bar chart

• Waterfall chart

What should be avoided when designing a pie chart?

• Using more than five segments

• Adding percentages to the chart

• Labeling each segment

• Using contrasting colors

What is the primary goal of descriptive analytics?

• Predict future trends

• Explain why something happened

• Summarize historical data for insights

• Generate real-time alerts

Which of the following is NOT a common tool for data visualization?

• Tableau

• Python’s Matplotlib

• Excel

• TensorFlow