👉 In probability theory and statistics, a cumulant is a quantity that measures the second central moment of a real-valued random variable. It is an important concept in statistical analysis, particularly in areas such as fluid dynamics, heat transfer, and queueing theory. The first cumulant (or simply "cumulit") is defined as: \[ \text{First Cumulant} = E(e^{\text{i}x}) \] where \( e^{\text{i}} \) denotes the
