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.

Slovenia (Slovenija) is a member of the European Union, Schengen Agreement and NATO. Previously one of Yugoslavia's six constituent republics, present-day Slovenia became independent in 1991. Slovenia has four universities, located in Ljubljana, Maribor, Nova Gorica and Koper.