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Flashcards · 0417 · Topic 16

Graphs and charts flashcards

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Create, label and edit a graph or chart

Which chart type should you use for each purpose?
Bar or column: comparing categories. Line graph: change over time. Pie chart: parts of a whole. Scatter graph: whether two sets of numbers are related.
Why should you not include the Total row when selecting chart data?
It appears as an extra category (a huge bar or sector) and distorts the chart.
Name five labels a chart may need
Chart title, axis titles (with units), legend (when there is more than one series), data labels, category labels.
When is a legend needed on a chart?
When there is more than one data series, to show what each colour or line represents. It can be removed for a single series.
Books 120, Games 90, Music 60, Toys 30. What angle is the Books sector of a pie chart?
Total = 300. Books = 120 ÷ 300 = 40%, and 0.40 × 360° = 144°.