Justin drew this graph to show his mobile data usage for each of the following four months. State one aspect of the graph that may be misleading and explain how this may lead to a misinterpretation of the graph.

Misinterpretation Analysis interpretation Drawing inference 中文

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1. State one misleading aspect of the graph

The phone pictures are scaled by overall size, not just by height; both the height and width of the icons increase.

2. Explain how this could lead to misinterpretation

Since the area of each phone changes, a larger phone may look disproportionately larger than the actual mobile data usage. This could make April's usage seem much more than January's, February's or March's usage.

Answer

The graph is misleading because the phone icons are enlarged in both height and width, so their areas increase. This may make the data usage in later months, such as April, appear much greater than it really is compared with earlier months.

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Justin drew this graph to show his mobile data usage for each of the following four months. State one aspect of the graph that may be misleading and explain how this may lead to a misinterpretation of the graph.

Worked solution

6

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