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This video defines random variables and compares discrete and continuous distributions. It also provides various "real-word" scenarios that are modeled by random variables.
This page defines probability distributions and provides examples of discrete and continuous distributions.
This page defines different classifications of random variables and provided a self-assessment.
This video outlines the uses of two-ways tables and the different ways these tables can be analyzed. The video uses "real-world" data and problems to frame the concepts.
$$n$$ balls numbered 1 through $$n$$ are randomly arranged. A match occurs when the ball number matches the position number. The number of matches is recorded.