Question

Deseasonalised data involves _____________.

a. adding the seasonal component (S) to the original data (Y)
b. subtracting the seasonal component (S) from the original data (Y).
c. subtracting the trend component (T) from the original data (Y)
d. adding the trend component (T) to the original data (Y)

Answer 1

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When you remove the seasonal patterns in Data then you basically get deseasonalized data.

Hence, deasonalized data involves  B) subtracting the seasonal component (S) from the original data (Y).

A and D are wrong as S and T are not added to original data to treat it for removing seasonality and trend. C is wrong because that' detrending the data, and not removing seasonality.

Answer: B) is correct