Time-Series Data May Exhibit Which of the Following Behaviors

question 129

Multiple Choice

Time-series data may exhibit which of the following behaviors?

• A) trend
• B) random variations
• C) seasonality
• D) cycles
• E) They may exhibit all of these.

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Definitions:

Secular Trend

Trend that can be seen only by observing several generations, such as the trend toward earlier attainment of adult height and sexual maturity, which began a century ago in some countries.

Primary Sex Characteristics

Organs directly related to reproduction, which enlarge and mature during adolescence.

Gonads

The primary reproductive organs that produce gametes (sperm in males, ova in females) and various sex hormones; the testes in males and ovaries in females.

Anatomical Structures

The various organs and systems in the body, defined by their physical properties and locations.