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Histograms, scatter plots and misleading displays
Free examples and worked answers. No account needed.
Practise the method.
Histograms, scatter plots and misleading displays
Histograms, scatter plots and misleading displays
Example 1
How many journeys are shown?
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Answer: 19
- Add all interval frequencies.
- 19.
Example 2
How many journeys took at least 10 but less than 30 minutes?
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Answer: 11
- Add the 10–20 and 20–30 intervals.
- 7+4=11.
Example 3
What association is suggested by this scatter plot?
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Answer: Negative association
- As x increases, y generally decreases.
Put it into practice.
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