How many Misrepresentation of statistical diagrams practice questions are there?

There are 43 self-marking GCSE Maths questions on Misrepresentation of statistical diagrams, written for AQA, Pearson, OCR across Foundation and Higher tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Misrepresentation of statistical diagrams?

No. You can start practising Misrepresentation of statistical diagrams straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.

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Misrepresentation of statistical diagrams

43 self-marking GCSE practice questions on Misrepresentation of statistical diagrams, written specifically for AQA, Pearson, OCR across Foundation and Higher tier. Instant marking with full worked solutions on every question.

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Sample Misrepresentation of statistical diagrams questions

A few of the 43 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

Question 11 markGrade 3-4
A bar chart comparing two companies' profits has its vertical axis starting at £40,000 instead of £0. One bar (£42,000) looks nearly twice as tall as the other (£41,000), even though the actual profits are almost equal. What is the main reason this bar chart is misleading?
Show the worked solution
When a bar chart's vertical axis does not start at zero, small real differences between values are stretched visually, making them look far more dramatic than they are. Here, a £1,000 difference (about 2.4%) is made to look like the second bar has almost double the profit of the first. Starting the axis at zero would show the bars are almost the same height.

What are the common mistakes in Misrepresentation of statistical diagrams?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

Focuses on an irrelevant visual feature rather than the actual misleading element of a graph
Colour choice does not distort the data - the issue is the axis scale not starting at zero, which exaggerates the visual difference between bars
Attributes a misleading graph to poor drawing rather than to a biased selection of data/scale
The graph itself may be drawn perfectly accurately for the months shown - the misleading part is the CHOICE of which data to include, not an error in constructing the diagram
Overgeneralises a rule about the chart type rather than identifying the specific issue
An axis break, if clearly marked, is a legitimate and honest technique used in real statistics to focus on a range of interest - the key issue for misrepresentation is only when the break is used to exaggerate differences without being obviously marked, not that any break at all is automatically dishonest

Quick answers about Misrepresentation of statistical diagrams

How many Misrepresentation of statistical diagrams practice questions are there?: There are 43 self-marking GCSE Maths questions on Misrepresentation of statistical diagrams, written for AQA, Pearson, OCR across Foundation and Higher tier. Each one is marked instantly and has a full worked solution.
Do I need an account to practise Misrepresentation of statistical diagrams?: No. You can start practising Misrepresentation of statistical diagrams straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.