Arandomly selected sample of a population for study is one in which: a. each child in a population has an equal chance of being selected. b. there is no method for selecting children for a study. c. every other person in a population is eliminated. d. all subjects of a study are assigned to a control group.

Plz me asap! and plz put a real answer! which of the following best describes richard russell's contribution to the war effort? by serving on the senate's naval affairs committee, he investigators learn how the pearl harbor attack was carried out. by to establish military bases like georgia's fort benning, he the state become an important resource to the federal government. by traveling to the war's regions, he develop maps of europe and the pacific. by working with his state's shipyards, he was able to obtain federal contracts to supply the military with ships built in savannah and brunswick.

What made it increasingly difficult for president roosevelt to stay neutral during world war ii?

During the 1500s,most rulers supported established a. political systems. d. none of the above b. churches c. freedom of speech