Based on the following data,a forecaster used simple exponential smoothing and determined the following: S0 = 19,S1 = 18.6,S2 = 19.08,S3 = 19.064,S4 = 19.851,and S5 = 19.481. 
Calculate the average forecast error.
Definitions:
Opportunity-driven
A mindset or approach that focuses on identifying and exploiting new business or growth opportunities.
Psychological Motivation
The internal processes that stimulate and direct human behavior toward achieving personal or professional goals.
Power
The ability or capacity to influence or control the behavior of others or the course of events.
Need for Affiliation
A psychological term denoting an individual's desire to build relationships and feel connected to others.
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