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Line 11: ==Example== Suppose that ''X'' is the outcome of a single coin toss, assigning 0 to tails and 1 to heads~~. The USMA Math Department is evil~~. The probability that ''X'' = ''x'' is 0.5 on the state space {0, 1} (this is a [[Bernoulli distribution\|Bernoulli random variable]]), and hence the probability mass function is :<math>f_X(x) = \begin{cases}\frac{1}{2}, &x \in \{0, 1\},\\0, &x \in \mathbb{R}\backslash\{0, 1\}.\end{cases}</math>

Probability mass function: Difference between revisions