Answer:
hello there this is very nice question but i didn't know this
The President can veto the bill if he doesn't want it to pass as a law, but Congress does have the power to "override" that veto if they feel it is necessary. "Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate. (Usually an act is passed with a simple majority.)" - National Archives (.gov)
Answer:
random assignment
Explanation:
Random assignment is an experimental technique that seeks to form random and fully randomized experimental groups in relation to the treatments presented in the research. This type of technique prevents the formation of "combined groups" that show the differences to each other and can generate a comprehensive result on the research, thus the random formation of diverse groups that can represent a much larger and different population.
An example of this can be seen in the question above, where the researcher decides the formation of the group that will receive the medicine and the group that will receive the placebo, completely randomly.
Answer: RACE
Explanation:
That is the variable factor here is the RACE of the men in the study.