What Greek letter is represented by the symbol "Ξ"?

The symbol "Ξ" represents the Greek letter Xi. In the Greek alphabet, each letter has its own unique symbol and is used in various fields such as mathematics, physics, and engineering, as well as in the Greek language itself. Xi is the 14th letter of the Greek alphabet and is associated with various concepts including statistical and mathematical notation. Understanding the Greek alphabet is fundamental in many areas of study, particularly in sciences where these symbols frequently denote variables and constants.