The Following Sales Data Are Available for 2003-2008 Calculate the Average Error

question 20

Essay

The following sales data are available for 2003-2008:
$$\begin{array} { | c | c | c | } \hline \text { Year } & \text { Sales } & \text { Forecast } \\\hline 2003 & 7 & 9 \\\hline 2004 & 12 & 10 \\\hline 2005 & 14 & 15 \\\hline 2006 & 20 & 22 \\\hline 2007 & 16 & 18 \\\hline 2008 & 25 & 21 \\\hline\end{array}$$
Calculate the average error.

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Definitions:

Personalities

Pertains to the distinct variations in the way individuals typically think, feel, and act.

Fraternal Twin Brothers

Siblings born at the same time who have developed from two different eggs fertilized by separate sperm, sharing about 50% of their genetic material.

Identical Twin Brothers

Siblings born from the same pregnancy who share exactly the same genetic material due to the fertilized egg splitting into two.

Extraversion

A personality trait characterized by outgoingness, high energy, and positive emotions towards social interaction.