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Questo esame si sostiene in inglese: le lezioni e le domande sono in inglese. L'interfaccia resta in italiano.
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Part 1 of 4
Before answering chart questions, spend 10 seconds inspecting the axes. Check: What variable is on the X-axis? What is on the Y-axis? What are the measurement units (thousands, millions, percentages)?
Pay special attention to non-zero Y-axis origins. A graph starting at Y = 90 makes a change from 92 to 96 look huge visually, even though it represents only a small 4% increase.
Worked example
A bar chart shows revenue starting at Y = 50 million. Bar A is at 52, Bar B is at 56. Visually Bar B looks twice as tall as Bar A, but actual values are 52M and 56M (a 7.7% difference).
1.Checking axis units and scale origins prevents misinterpreting visual bar heights.
2.If a Y-axis starts at 100 instead of 0, bar heights reflect absolute values accurately without distortion.
3.Always verify whether chart numbers represent raw units or percentages before performing calculations.
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Eliminate any option that contradicts something stated directly in the lesson, then check which one actually follows from the rule you just learned. Tell me which option confused you and I'll point to the exact line.
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