Expected values of all probability distributions

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10 Terms

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Bernoulli

E[X] = p

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Binomial

E[X] = np

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Geometric

E[X] = 1/p

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Poisson

E[X] = labda

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Uniform

E[X] = (theta1+theta2)/2

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Exponential (rate parametrization)

E[X] = 1 / labda

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Gamma

E[X] = r / labda

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Chi squared

E[X] = k

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Normal

E[X] = mu

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Student’s t-distribution

E[X] =0 for ν >1