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A chart uses colours for different categories but provides no legend. What difficulty will the user face?

Answer and explanation

Correct answer: It will be unclear which category each colour represents

A legend, or key, is a visual communication element that explains the meaning assigned to symbols, patterns, or colours. Without it, a viewer may see different colours but cannot reliably connect each colour with a category, so the chart becomes difficult to interpret. Option B is correct. Missing legend information does not determine graph height, hide the title, or remove the need for axes.

Related tags

LegendColour CodingChartData InterpretationVisual CommunicationCommunication Skills IArtificial IntelligenceClass 9 Mcq

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