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May 15, 2020 at 2:25 pm
could you explain how did you get -7.6? please.
John Moffat says
May 15, 2020 at 2:55 pm
I assume you are asking about question 4.
As I explain in my free lectures on this, the seasonal variations must add up to 0. 5.8 – 8.4 + 10.2 = + 7.6 Therefore for the total of all 4 to be zero, the missing one must be – 7.6.
Have you watched my free lectures on forecasting?
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