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.

From indigenous civilizations to modern day empires, North America has plenty of hands-on educational opportunities to offer scholars. Filled with a range of distinct cultures, students can educate themselves in well-rounded way.

Graduate diplomas are typically not offered in the United States. The American equivalent of a diploma is referred to as a professional certification. Each university has a different set of requirements for admission, so students should perform in-depth research on programs before applying.