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.

Israel, officially the State of Israel, is a parliamentary democracy in the Middle East, on the south-eastern shore of the Mediterranean Sea. Israel's financial center is Tel Aviv, while Jerusalem is the country's most populous city if occupied East Jerusalem is included.

A master's degree is an academic degree granted to individuals who have undergone study demonstrating a mastery or high-order overview of a specific field of study or area of professional practice.