👉 Couple's math is a fundamental concept in probability theory that deals with the joint probability distribution of two random variables, X and Y. It allows us to determine the likelihood that both X and Y take on specific values simultaneously. The key idea is to consider all possible pairs of outcomes (x, y) that can occur when both variables are observed. The joint probability mass function (PMF) or density function (if continuous) provides the probability that X = x and Y = y, often denoted as P(X = x, Y = y). This concept is crucial for understanding dependencies between variables and forms the basis for more complex probabilistic models in statistics and data science.
