Compute the measurement signal-to-noise ratio that is,  where µ = E[X] and σ2 = Var(X) −of...

Compute the measurement signal-to-noise ratio that is,  where µ = E[X] and σ2 = Var(X) −of the following random variables:

(a) Poisson with mean λ

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(b) binomial with parameters n and p;

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(c) geometric with mean 1/p;

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(d) uniform over (a, b);

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(e) exponential with mean  1/ λ;

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(f) normal with parameters µ, σ2.