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Show counts beside conversion rates

Visualization practice · A useful chart makes its units, population and limitations inspectable.

Learn → Try → ExplainReviewed 2026-10-15
01

Your task

Search has 27/270 conversions and Email 18/180. Which is better? Sketch the view and write an accessible text alternative.

02

Hint

Start with the decision and the comparison. Avoid decorative marks that compete with the evidence.

Worked solution

Both are 10% in this fixture. Show numerator and denominator alongside the rate. Different attribution, audiences and costs prevent a causal ranking; Email has lower observed spend per attributed conversion.

04

Review checklist

Can someone recover the values, period, population and denominator from the chart and text? State one conclusion the evidence does not support.

Make the reasoning yours.

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