Question

An analyst prepares a bar chart comparing quarterly revenue across four regions for an executive review. To emphasize the differences, they set the y-axis to start at $4.2 million (the lowest region's value) instead of $0. A reviewer flags that this presentation could mislead stakeholders. What is the primary reason the chart is misleading, and what is the best correction?

Accepted Answer

The truncated y-axis exaggerates the visual differences between bars; the axis should start at zero so bar heights accurately represent the relative magnitudes.

Answer

The chart uses too few categories; adding more regions would make the differences appear more proportional.

Answer

Bar charts should never be used for revenue; the analyst should switch to a pie chart to show each region's share.

Answer

The colors are the problem; using a single color for all bars would eliminate the misleading effect regardless of the axis.