Question $24$

$2pts$

For a time series decomposition, once the trend line is calculated, how can we generate the seasonality$-$adjusted forecasts? $q,$

By multiplying each value that results from the trend line calculation by the relevant seasonal index.

By dividing each actual observation by the relevant seasonal index.

By multiplying the de$-$seasonalised data by the relevant seasonal index.

By dividing each value that results from the trend line calculation by the relevant seasonal index.