Certificate in Business Data Analytics (CBDA) — Question 21

A large car manufacturer is interested in comparing the number of sales for a specific model of electric car across all 50 US states. The data analytics team sourced and acquired the data, and the business analyst created the model to compare sales across states. In a meeting to review the results, the feedback received included several complaints concerning an inability to distinguish the number of sales per state.
What model would result in such confusion?

Answer options

• A. Pie chart
• B. Dual axis chart
• C. Bullet chart
• D. Bar chart

Correct answer: A

Explanation

A pie chart represents data in a way that can make it difficult to compare individual segments, especially when there are many categories, like the 50 states. This likely led to confusion among the stakeholders. On the other hand, dual axis charts, bullet charts, and bar charts would provide clearer comparisons for the sales data across states.