Probability Theory: A Concise Course Now

Chapter 4 covers discrete and continuous random variables, mathematical expectation, and Chebyshev's Inequality .

Despite its brevity, the text is dense with educational resources: Probability Theory: A Concise Course

Reviewers often describe it as an excellent "pocket reference" or review tool rather than a comprehensive first-time textbook. Some readers note that its "concise" nature means certain topics, like , are not explicitly covered, and the transition to later, more technical chapters can be steep for beginners. Chapter 4 covers discrete and continuous random variables,