Alternative Equation Formats

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MathML

E (Y) = \frac{1}{Z (λ, ν)} \sum_{n = 0}^{\infty} \frac{n μ^{ν n}}{(n!)^{ν}}

\[ E(Y)=\frac{1}{Z(\lambda ,\nu )} \sum _{n=0}^{\infty }\frac{n \mu ^{{\nu }n}}{(n!)^{\nu }} \]