How would you visualize a complex, multi-stage user funnel?
Tests product sense and data viz literacy. A good answer proposes a Sankey/Alluvial diagram to show non-linear flows, explains how it visualizes drop-off and re-entry, and notes the data needs. A red flag is just suggesting a better standard funnel chart.
This question tests your ability to translate a business need into a specific data visualization solution beyond basic charts. A strong answer first clarifies the business goal, then proposes a Sankey or Alluvial diagram. Explain that it excels at showing flow, volume, and branching paths, making it ideal for visualizing user drop-off and complex re-entry points that standard funnels miss. A common red flag is suggesting a workaround with standard charts instead of addressing the core non-linear problem.
Read the original → Wikipedia: Alluvial diagram
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