Spot the Dual-Axis Trap
Identify how a secondary axis can manufacture a visual relationship between two measures.
The revenue explanation is forming in real time. Which visual element is the issue? Secondary right-side scale Correct. A separate right-side scale can be stretched or compressed until two lines appear related. Operations lead presenting The presenter may overclaim, but the chart design problem is the independent second ruler. Different line colors Color distinguishes series. The bigger risk is that the two colored lines are positioned against different scales. Laptop on the table The device is incidental. The misleading evidence comes from how the chart maps the measures. Scale skepticism Nudged data-literacy by checking whether a visual relationship shares one…
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