Data Visualization Quiz

What is the primary purpose of data visualization?

• To create complex algorithms

• To perform statistical analysis

• To visually represent data to communicate information

• To store large datasets

Which of the following is a common type of univariate visualization?

• Bubble chart

• Line chart

• Scatter plot

• Bar chart

A data analyst at a logistics company is studying how delivery time varies with the distance traveled for hundreds of recent shipments. She wants to understand if there's a pattern or trend between the two numerical variables: distance (in km) and delivery time (in hours).

Which type of data visualization should she use to show the relationship best?

• Histogram

• Pie chart

• Scatter plot

• Box plot

What is a heatmap primarily used for?

• Showing trends over time

• Displaying categorical data

• Representing single variable distributions

• Exploring correlations between multiple numeric variables

Zeeshan is preparing a presentation to show how the department’s annual budget is distributed across different expense categories: salaries, software licenses, training, travel, and equipment. He wants to give his audience a clear sense of how each category contributes to the total budget.

Which type of chart is best suited to visually represent?

• Line chart

• Pie chart

• Scatter plot

• Box plot

What is a common mistake to avoid in data visualization?

• Using clear labels

• Utilizing legends effectively

• Overuse of 3D effects

• Choosing appropriate colors

During a quarterly performance review, Zeeshan needs to present how different teams performed in terms of completed tasks: Development, QA, Support, and Design. He wants the audience to quickly compare task completion counts across these categories.

Which type of chart should Zeeshan use to best compare performance across different teams?

• Histogram

• Box plot

• Bar chart

• Scatter plot

Zeeshan is analyzing monthly electricity usage in the office over the past year to evaluate the impact of a recent energy-saving campaign. He wants to show how consumption has changed over time so that stakeholders can clearly see trends and patterns.

Which type of chart is best suited for visualizing changes in electricity usage over time?

• Pie chart

• Heatmap

• Line chart

• Bubble chart

Zeeshan is evaluating the skill sets of three team leads across five competencies: Technical Knowledge, Communication, Leadership, Problem Solving, and Time Management. He wants a chart that clearly shows how each individual performs across all these areas so he can visually compare their strengths and weaknesses.

Which type of visualization is best suited to compare multiple categories across several features in a way that highlights individual performance patterns?

• Radar chart

• Box plot

• Histogram

• Scatter plot

As part of a performance audit, Zeeshan is analyzing how long customer service agents take to resolve support tickets. He has a dataset of resolution times (in minutes) and wants to understand how these times are distributed—whether most resolutions are quick, slow, or somewhere in between.

Which type of chart is best suited to visualize the distribution of this numerical data?

• Line chart

• Histogram

• Bar chart

• Pie chart