Consider the Actual Values Y and Forecast Values F Given

Multiple Choice

Consider the actual values Y and forecast values F given in the table below. $$\begin{array} { | c | c | c | } \hline \text { Time Period } & \mathrm { Y } & \mathrm { F } \\\hline 1 & 19.5 & 19.3 \\\hline 2 & 21.5 & 20.9 \\\hline 3 & 22.6 & 22.5 \\\hline\end{array}$$ Calculate the mean absolute deviation (MAD) of the forecasts.

A) 1.42
B) 0.90
C) 0.30
D) 0.37