Which of the Following Statements Is True

question 123

Multiple Choice

Which of the following statements is true?

• A)A decrease in demand causes a decrease in equilibrium price;the decrease in price causes supply to decrease.
• B)A decrease in demand causes equilibrium price to fall;the decrease in price then results in a decrease in quantity supplied.
• C)If both demand and supply increase,there must be an increase in equilibrium price;equilibrium quantity may either increase or decrease.
• D)If demand decreases and supply increases one cannot determine if equilibrium price will increase or decrease without knowing which change is greater.

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Definitions:

Longitudinal Study

A research design that involves repeated observations of the same variables (e.g., individuals) over short or long periods of time, often many years.

Independent Variable

In an experimental setting, the variable that is deliberately changed or manipulated to observe its effect on the dependent variable.

Dependent Variable

In research, the variable that is measured and is expected to change as a result of changes in the independent variable.

Risk Factors

Attributes, characteristics, or exposures that increase the likelihood of a person developing a disease or injury.