Probability is the branch of mathematics that studies the likelihood of events occurring. This category covers fundamental concepts such as experiments, outcomes, sample space, and basic probability rules. Learners can explore how to calculate simple and compound probabilities using formulas and logical reasoning. It is essential for understanding uncertainty, risk, and decision-making in real-world situations. Content includes step-by-step explanations, examples, and practice problems of varying difficulty. This category is widely applied in statistics, science, finance, and data analysis. It also builds a strong foundation for advanced topics like statistics and stochastic processes.