In Time Series, Which of the Following Cannot Be Predicted

question 20

Multiple Choice

In time series, which of the following cannot be predicted?

• A) large increases in demand
• B) cycles
• C) seasonal fluctuations
• D) random fluctuations
• E) large decreases in demand

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Definitions:

Ex Post Facto Design

A scientific study in which the values of the independent variable are not manipulated, but selected by the experimenter after the groups have naturally divided themselves.

Descriptive Research

A method of research that aims to observe and describe characteristics of a subject without influencing it.

Placebo

A substance or treatment with no therapeutic effect, used as a control in testing the efficacy of another substance or treatment.

Clinical Researcher

A professional involved in conducting scientific studies to evaluate and improve healthcare interventions, diagnostics, and treatments.