The time series plot below shows the rainfall (in mm) for each month during 2008.
- Which month had the highest rainfall? (1 mark)
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- Use three-median smoothing to smooth the time series. Plot the smoothed time series on the plot above.
- Mark each smoothed data point with a cross (×). (2 marks)
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- Describe the general pattern in rainfall that is revealed by the smoothed time series plot. (1 mark)
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