A Forecasting Method Has Produced the Following Over the Past

question 92

Multiple Choice

A forecasting method has produced the following over the past five months. What is the mean absolute deviation? $$\begin{array} { | c | c | c | c | } \hline \text { Actual } & \text { Forecast } & \text { Error } & \mid \text { Error } \mid \\\hline 10 & 11 & - 1 & 1 \\\hline 8 & 10 & - 2 & 2 \\\hline 10 & 8 & 2 & 2 \\\hline 6 & 6 & 0 & 0 \\\hline 9 & 8 & 1 & 1 \\\hline\end{array}$$

• A) -0.2
• B) -1.0
• C) 0.0
• D) 1.2
• E) 8.6

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Definitions:

Discharge Monitoring Reports

Reports submitted by facilities to environmental agencies detailing the pollutants in their discharged water.

Clean Water Act

A federal law in the United States that regulates the discharge of pollutants into the nation's surface waters, including lakes, rivers, streams, and coastal areas.

Marine Mammal Protection Act

A 1972 U.S. law aimed at protecting marine mammals, prohibiting their harassment, hunting, capturing, or killing.

Rivers And Harbors Act

A United States federal law enacted in 1899, regulating the development and management of the nation's waterways to protect navigable waters and prevent obstructions.