Probability distribution is a statistical function that describes the likelihood of different possible outcomes for a certain event or phenomenon. It provides a systematic way to understand and represent the probabilities associated with various outcomes. Probability distributions are commonly used in statistics and data analysis to model and analyze random variables. They can take various forms, such as the normal distribution, binomial distribution, or Poisson distribution, each representing different types of events or variables. Understanding probability distributions is crucial in fields like finance, economics, engineering, and data science, as they aid in making informed decisions and predictions based on the likelihood of different outcomes.