Lesson 5 of 12Article17 min
Random Variables & Expectation
A random variable X assigns a number to each outcome. Discrete: countable values with pmf p(x). Continuous: density f(x) where probabilities are areas.
01Discrete vs continuous
A random variable X assigns a number to each outcome. Discrete: countable values with pmf p(x). Continuous: density f(x) where probabilities are areas.