Martha Has Noticed That the CPI Has Increased by 7

question 19

Multiple Choice

Martha has noticed that the CPI has increased by 7% over the past year.What is the best conclusion for Martha to make based on this information?

• A)Her cost of living has increased by 7%.
• B)The price of necessities such as food, rent, and medicine has increased by an average of 7%.
• C)Her income has increased by 7%.
• D)The weighted average of prices of goods and services in a market basket bought by a typical consumer has increased by 7%.

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Definitions:

Confounding Variables

Variables that are not the primary interest of a study but can influence the outcome, making it difficult to establish a clear cause-and-effect relationship.

Independent Variable

A variable that is manipulated or changed in an experiment to determine its effect on the dependent variable.

Room Temperature

A general description of a comfortable indoor environment, typically considered to be around 20°C (68°F) to 22°C (72°F).

Noise Level

The measurement of the ambient level of sound, often referring to the background sound present in a given environment.