Which of the Following Has Been a Century-Long Trend in the United

question 60

Multiple Choice

Which of the following has been a century-long trend in the United States?

• A)Decline of total value of world trade.
• B)Relative increase in farming to manufacturing.
• C)Relative decline in manufacturing to the service sector.
• D)Relative decline in service sector to manufacturing.

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Definitions:

Dependent Variable

In experimental and statistical research, the variable that is being tested and measured to see if it is affected by changes in another variable (the independent variable).

Confounding Variable

An external variable in an experiment that can affect the results of the study, potentially leading to incorrect conclusions if not controlled.

Normal Curve

A bell-shaped curve that represents the distribution of many types of data where most values cluster around a mean value.

Standard Deviation

A statistical measure that quantifies the variation or dispersion of a set of numerical data from its mean.