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Question 4 For the following time series plots, explain what type of transformation, if any, would make the variance more stable. (3 marks). 1) 1960

Question 4 For the following time series plots, explain what type of transformation, if any, would make the variance more stable. (3 marks). 1) 1960 1980 2000 2) 8000 - 7000 - 6000 - 5000 - 4000 - 1960 Q1 1980 Q1 2000 Q1

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