He opened the port of new orleans to american ships
<span>In randomized controlled trials, people are randomly assigned to each category to offset any potential bias.
</span>Selection bias<span> is the phenomenon where</span><span> the </span>selection<span> of people or groups is not adequately randomized to offset potential bias in research studies. This in turn does not ensure that the study samples included in research are representative of the population needed to be tested on.</span>
True. instrumental values are those that are core to the meaning of our life.
I think it is B. before the constitution, the government could not collect taxes. C and D aren’t accurate statements