The Actual Value of the Time Series at Time T $\frac { \sum _ { t = 1 } ^ { n } \left| \frac { A _ { t } + F _ { t } } { 2 } \right| } { n }$

question 8

Multiple Choice

The actual value of the time series at time t and the forecast value for time t is denoted by At and Ft respectively.What is the formula used for calculating the mean absolute percentage error over a range of forecasted values?

• A)MAPE = \(\frac { \sum _ { t = 1 } ^ { n } \left| \frac { A _ { t } + F _ { t } } { 2 } \right| } { n }\)
• B)MAPE = \(\sqrt { \frac { \sum _ { t = 1 } ^ { n } \left| \frac { A _ { t } + F _ { t } } { 2 } \right| } { n } }\)
• C)MAPE = \(\frac { \sum _ { t = 1 } ^ { n } \left| A _ { t } - F _ { t } \right| } { n }\)
• D)MAPE = \(\frac { \sum _ { t = 1 } ^ { n } \left| \frac { A _ { t } + F _ { t } } { A _ { t } } \right| } { n }\) × 100

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Definitions:

Maturation

The process of becoming mature, involving growth and development in biological, emotional, or intellectual aspects.

DNA

Deoxyribonucleic acid, the hereditary material in humans and almost all other organisms.

Genetic Characteristics

Attributes, conditions, or disorders that are determined by genes inherited from one's parents.

Proteins

Large biomolecules consisting of one or more long chains of amino acid residues, crucial for the body's structure, function, and regulation of tissues and organs.