How do researchers determine what is true based on the data they collect? This question is one of the central concerns of statistics, which uses mathematical models to draw useful conclusions about the real world.

South America It is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest. It includes twelve sovereign states Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador,Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela – and two non-sovereign areas – French Guiana, an overseas territory of France, and the Falkland Islands, a British Overseas Territory. In addition to this, Trinidad and Tobago and theABC islands of the Netherlands may also be considered part of South America.

A bachelor’s degree is a four-year undergraduate degree and is the standard for higher education throughout most of the world. Bachelor’s degrees can be earned at state universities, at private universities, at community colleges and via online universities.

Part-time learning allows one to obtain a degree or qualification even if one cannot attend school on a full-time basis. One can learn at one's own pace, gradually accumulating credits that count towards a final qualification.