Given Forecast Errors of -1, 5, 9, and -3, What

question 85

Multiple Choice

Given forecast errors of -1, 5, 9, and -3, what is the mean absolute deviation?

• A) 2
• B) 3.5
• C) 4.5
• D) 8.6
• E) 18

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Definitions:

Sound Wave

A type of pressure wave generated by vibrating objects, which travels through a medium (such as air or water) and is perceived as sound when it reaches a human ear.

Timbre

The quality of a sound that distinguishes it from other sounds of the same pitch and volume.

Sound Wave

A type of pressure wave caused by the vibration of an object, which travels through a medium (such as air) and is perceived as sound when it reaches a human ear.

Frequencies

The number of occurrences of a repeating event per unit of time, often used in the context of sound waves or electromagnetic waves.