In a free market economy, the price and distribution of goods and services is governed by the law of supply and demand. Producers or firms produce those services and goods that consumers are willing and able to pay for in the market.
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add more points and A is the answer 2020 edg.
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Explanation:
Contamination can have undesirable consequences in real experiments, some of them are related to the feelings that may arise in the research participants, the contamination bias reduces the differences between the research groups, and can cause a comparison between the treatments of each different group, the which can generate conflicts and rivalries on the part of groups that consider themselves to be inferior to others. These contamination-related problems can significantly interfere with the research results.
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off the coast of New England colonial region which includes New Hampshire, Massachusetts Bay, Rhode Island, and Connecticut
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