Data from the Previous 5 Months of a Forecasting Method

question 72

Multiple Choice

Data from the previous 5 months of a forecasting method is shown below. What is the mean absolute deviation? $$\begin{array} { | c | c | c | c | } \hline \text { Actual } & \text { Forecast } & \text { Error } & \mid \text { Error } \mid \\\hline 12 & 13 & - 1 & 1 \\\hline 10 & 12 & - 2 & 2 \\\hline 12 & 10 & 2 & 2 \\\hline 8 & 8 & 0 & 0 \\\hline 11 & 10 & 1 & 1 \\\hline\end{array}$$

• A) −1.2
• B) 0.0
• C) 6.0
• D) 1.2

---

Definitions:

Implicit Association Test

A psychological test that measures the strength of associations between concepts in a person's mind, revealing underlying preferences or biases.

Prejudice

A preconceived opinion or bias against an individual or group without sufficient knowledge, thought, or reason.

Morality

Principles concerning the distinction between right and wrong or good and bad behavior.

Arbitrary

Based on random choice or personal whim, rather than any reason or system.