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→Bernoulli
* <math>X \sim B(p)</math>, <math>P(X=1) = p</math>, <math>P(X=0)=1-p</math>
* <math>f(X=x|p) = f(x|p) = p^x (1-p)^{1-x}</math>
* Expected value <math>E[X] = \sum_x x P(X=x) = (1)p+(0)(1-p) = p</math>
* Var(X)=p(1-p)
