South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas, Arkansas, North Carolina, Tennessee, and Virginia were all Confederate Sates.
Maine, Vermont, New Hampshire, Massachusetts, New York, Connecticut, Pennsylvania, New Jersey, Ohio, Michigan, Indiana, Illinois, Iowa, Wisconsin, Minnesota, Rhode Island, Kansas, Oregon, and California were Union States.
Delaware, West Virginia, Kentucky, Missouri, and Maryland were Border States.
The rest weren't states yet or didn't pick a side.
According to the Central Limit Theorem, the sample size, being n larger than 30, is representative of the Standford students´ use of the drug, in this case, being ecstasy. Another reason why the procedure works is the random sampling, where the assistants made sure that the only characteristic that mattered was being a student; gender, major being pursued, age, etc. were not of relevance.
Bicameral means with two chambers (bi- is 2 and camera means chambers). A legislative body with one chamber would be called unicameral. The correct answer is B.
