Answer:
Please tell me what all answers on the test were please or just this
Explanation:
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Answer:
D)The government enforces economic laws and regulations.
Explanation:
The USA is a free-market society that allows private business and initiative. Businesses are in the market for profit, they make their own decisions on investments, resource allocation and products. They must do in compliance with the existing laws. The role of the government is to provide the best possible economic environment and enforce laws and regulations.
Answer:
D. the researcher controls for the effects of all variables except one.
Explanation:
Controlled experiment refers to an empirical test that is manipulated directly by a scientist to test a single variable at one point in time. The testing variable is the independent variable which is manipulated to see the effects on the system under observation. To minimize the effects of controlled variable on the subject, the controlled variables are controlled accordingly.
