Answer:
random assignment, a random sample
Explanation:
In an experiment which requires groups the groups are to be made sure that members of each group is selected at random. This is known as random assignment.
The selection of participants from a population randomly i.e., having no pattern is called random sampling and the sample is called random sample. The random sample is selected as such in order to be representative of the population.
Answer: Veto
Explanation: "a constitutional right to reject a decision or proposal made by a law-making body.
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Slavery continued in Washington, D.C, but slave trading was banned.
Hope this helps!
-Payshence
The worker organizing and collective bargaining become a threat to the employers and the governments as it becomes expensive for them to provide higher wages.
<h3>Who are labor unions?</h3>
Labor unions are the entities that fight for the rights of workers by acting as an intermediary between the workers and employers.
Collective bargaining is the scenario when the workers in the group demand a considerable rise in their wages. This becomes a threat to the government and employers because the condition of providing higher wages to the workers would be very expensive for them if they approve. If they will not approve, then the workers can go on strike or lockouts.
Therefore, the provision of higher wages to the workers becomes a threat to the employers and the government.
Learn more about the labor union in the related link:
brainly.com/question/453055
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The invisible primary.
I hope this helps, please Brainliest me, and have a great night! :D