Question $4$

Given the following statements

I$-$To select the best forecasting technique.

II$-$ To estimate the standard deviation of the forecast.

III$-$ To see if the forecast is within control limits$.$

IV$-$ To see if the forecast does not show any specific pattern.

The main two applications of MAD are I and II$.$

he main two applications of MAD are I and III.

The main two applications of MAD are I and IV$.$

The main two applications of MAD are II and III.

None of the answers