Problem $5)$ A restaurant by the beach sees most of its demand during the summer months. The following table shows the manager's forecast and the actual demand for the past six years. You need to evaluate the quality of the forecast.

$\backslash$table$[[$Year$,$Demand,Forecast,$\backslash$table$[[$Forecast$],[$Error$]],\backslash$table$[[$Absolute$],[$Error$]],$Squared Error$],[1,532,520,,,],[2,560,532,,,],[3,608,599,,,],[4,526,561,,,],[5,600,555,,,],[6,574,549,,,]]$

What is the average forecast error?

$9$

$14$

$25$

$3$